Multiple fuel pump failures
11-10-2007, 04:25 PM
#171
Guest
Posts: n/a
Re: Multiple fuel pump failures
Is the return to the tank full of crud ? If so, you can get the symptoms you
describe ; fuel pump pumps more fuel than the engine needs, pressure builds
up in the fuel rail, eventually the pump can't pump any more. Vehicle stalls
and wont restart. Over night pressure bleeds off, vehicle runs for another
15 mins. Eventually, fuel pump dies.
Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
it.
Dave.
"Jon" <jongoddard@gmail.com> wrote in message
news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
> > Mike Romain wrote:
> > > Retiredff wrote:
> >
> > >> It failed again.
> >
> > > Your Gas filter is in upside down would be my guess.
> >
> > > The filter has two outlets. The center one goes to the carb and the
> > > 'top' one goes to the return line. If the return line outlet isn't up
> > > top, gas siphons back to the tank when it sits air locking the pump.
> >
> > > If this is it, two or three primes down the carb with gas will
> > > normally get it going again.
> >
> > > A pinhole leak in the gas line also causes this. It is a suction
> > > line, so a small leak only makes a stain, it doesn't drip but will
> > > let air in when it sits. You didn't find a stain though, so...
> >
> > > Mike
> >
> > Nope. Filter is correct. I found out many years ago that even if it is
off
> > by just a small amount, I have problems. Besides, I think even you would
> > amazed at how many times you have offered up that very important piece
of
> > info that gets overlooked. I find them them to be very benificial in
that it
> > continually reminds me to get it correct!
> >
> > Any kind of leak won't explain this, Mike. At least, not in a manner
that
> > makes sense to me.
> >
> > Today, I talked to a friend who owns his own garage, and he convinced me
to
> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
Provided,
> > of course, the pump lobe is good. I'll check that tonight.
> >
> > Any guesses on how rare those are?
> >
> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
in
> > the eastern U.S. that have them.- Hide quoted text -
> >
> > - Show quoted text -
>
> Retired,
>
> Can I ask about the mode of failure? You surely have a pile of these
> sitting around at this point.....and can stuff one in a vise to
> operate the lever and monitor whether or not it pulls/pushes or if you
> have a diaphragm/check valve failure. I know this doesn't duplicate
> the exact stroke of the pump lobe, but what do you have to lose if it
> indeed fails on the bench and you cut it open to investigate? I think
> you've gone beyond the one or two "bad" pumps off the shelf.
>
> Just in case -- the hoses also fail (soften) internally, so that under
> suction it closes itself off to flow. With a low level in the tank,
> you'll get nothing.....worth checking if your flexible lines at the
> tank feel soft, but you're a bit early at 1989...
>
> Jon
>
describe ; fuel pump pumps more fuel than the engine needs, pressure builds
up in the fuel rail, eventually the pump can't pump any more. Vehicle stalls
and wont restart. Over night pressure bleeds off, vehicle runs for another
15 mins. Eventually, fuel pump dies.
Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
it.
Dave.
"Jon" <jongoddard@gmail.com> wrote in message
news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
> > Mike Romain wrote:
> > > Retiredff wrote:
> >
> > >> It failed again.
> >
> > > Your Gas filter is in upside down would be my guess.
> >
> > > The filter has two outlets. The center one goes to the carb and the
> > > 'top' one goes to the return line. If the return line outlet isn't up
> > > top, gas siphons back to the tank when it sits air locking the pump.
> >
> > > If this is it, two or three primes down the carb with gas will
> > > normally get it going again.
> >
> > > A pinhole leak in the gas line also causes this. It is a suction
> > > line, so a small leak only makes a stain, it doesn't drip but will
> > > let air in when it sits. You didn't find a stain though, so...
> >
> > > Mike
> >
> > Nope. Filter is correct. I found out many years ago that even if it is
off
> > by just a small amount, I have problems. Besides, I think even you would
> > amazed at how many times you have offered up that very important piece
of
> > info that gets overlooked. I find them them to be very benificial in
that it
> > continually reminds me to get it correct!
> >
> > Any kind of leak won't explain this, Mike. At least, not in a manner
that
> > makes sense to me.
> >
> > Today, I talked to a friend who owns his own garage, and he convinced me
to
> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
Provided,
> > of course, the pump lobe is good. I'll check that tonight.
> >
> > Any guesses on how rare those are?
> >
> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
in
> > the eastern U.S. that have them.- Hide quoted text -
> >
> > - Show quoted text -
>
> Retired,
>
> Can I ask about the mode of failure? You surely have a pile of these
> sitting around at this point.....and can stuff one in a vise to
> operate the lever and monitor whether or not it pulls/pushes or if you
> have a diaphragm/check valve failure. I know this doesn't duplicate
> the exact stroke of the pump lobe, but what do you have to lose if it
> indeed fails on the bench and you cut it open to investigate? I think
> you've gone beyond the one or two "bad" pumps off the shelf.
>
> Just in case -- the hoses also fail (soften) internally, so that under
> suction it closes itself off to flow. With a low level in the tank,
> you'll get nothing.....worth checking if your flexible lines at the
> tank feel soft, but you're a bit early at 1989...
>
> Jon
>
11-10-2007, 04:25 PM
#172
Guest
Posts: n/a
Re: Multiple fuel pump failures
Is the return to the tank full of crud ? If so, you can get the symptoms you
describe ; fuel pump pumps more fuel than the engine needs, pressure builds
up in the fuel rail, eventually the pump can't pump any more. Vehicle stalls
and wont restart. Over night pressure bleeds off, vehicle runs for another
15 mins. Eventually, fuel pump dies.
Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
it.
Dave.
"Jon" <jongoddard@gmail.com> wrote in message
news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
> > Mike Romain wrote:
> > > Retiredff wrote:
> >
> > >> It failed again.
> >
> > > Your Gas filter is in upside down would be my guess.
> >
> > > The filter has two outlets. The center one goes to the carb and the
> > > 'top' one goes to the return line. If the return line outlet isn't up
> > > top, gas siphons back to the tank when it sits air locking the pump.
> >
> > > If this is it, two or three primes down the carb with gas will
> > > normally get it going again.
> >
> > > A pinhole leak in the gas line also causes this. It is a suction
> > > line, so a small leak only makes a stain, it doesn't drip but will
> > > let air in when it sits. You didn't find a stain though, so...
> >
> > > Mike
> >
> > Nope. Filter is correct. I found out many years ago that even if it is
off
> > by just a small amount, I have problems. Besides, I think even you would
> > amazed at how many times you have offered up that very important piece
of
> > info that gets overlooked. I find them them to be very benificial in
that it
> > continually reminds me to get it correct!
> >
> > Any kind of leak won't explain this, Mike. At least, not in a manner
that
> > makes sense to me.
> >
> > Today, I talked to a friend who owns his own garage, and he convinced me
to
> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
Provided,
> > of course, the pump lobe is good. I'll check that tonight.
> >
> > Any guesses on how rare those are?
> >
> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
in
> > the eastern U.S. that have them.- Hide quoted text -
> >
> > - Show quoted text -
>
> Retired,
>
> Can I ask about the mode of failure? You surely have a pile of these
> sitting around at this point.....and can stuff one in a vise to
> operate the lever and monitor whether or not it pulls/pushes or if you
> have a diaphragm/check valve failure. I know this doesn't duplicate
> the exact stroke of the pump lobe, but what do you have to lose if it
> indeed fails on the bench and you cut it open to investigate? I think
> you've gone beyond the one or two "bad" pumps off the shelf.
>
> Just in case -- the hoses also fail (soften) internally, so that under
> suction it closes itself off to flow. With a low level in the tank,
> you'll get nothing.....worth checking if your flexible lines at the
> tank feel soft, but you're a bit early at 1989...
>
> Jon
>
describe ; fuel pump pumps more fuel than the engine needs, pressure builds
up in the fuel rail, eventually the pump can't pump any more. Vehicle stalls
and wont restart. Over night pressure bleeds off, vehicle runs for another
15 mins. Eventually, fuel pump dies.
Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
it.
Dave.
"Jon" <jongoddard@gmail.com> wrote in message
news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
> > Mike Romain wrote:
> > > Retiredff wrote:
> >
> > >> It failed again.
> >
> > > Your Gas filter is in upside down would be my guess.
> >
> > > The filter has two outlets. The center one goes to the carb and the
> > > 'top' one goes to the return line. If the return line outlet isn't up
> > > top, gas siphons back to the tank when it sits air locking the pump.
> >
> > > If this is it, two or three primes down the carb with gas will
> > > normally get it going again.
> >
> > > A pinhole leak in the gas line also causes this. It is a suction
> > > line, so a small leak only makes a stain, it doesn't drip but will
> > > let air in when it sits. You didn't find a stain though, so...
> >
> > > Mike
> >
> > Nope. Filter is correct. I found out many years ago that even if it is
off
> > by just a small amount, I have problems. Besides, I think even you would
> > amazed at how many times you have offered up that very important piece
of
> > info that gets overlooked. I find them them to be very benificial in
that it
> > continually reminds me to get it correct!
> >
> > Any kind of leak won't explain this, Mike. At least, not in a manner
that
> > makes sense to me.
> >
> > Today, I talked to a friend who owns his own garage, and he convinced me
to
> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
Provided,
> > of course, the pump lobe is good. I'll check that tonight.
> >
> > Any guesses on how rare those are?
> >
> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
in
> > the eastern U.S. that have them.- Hide quoted text -
> >
> > - Show quoted text -
>
> Retired,
>
> Can I ask about the mode of failure? You surely have a pile of these
> sitting around at this point.....and can stuff one in a vise to
> operate the lever and monitor whether or not it pulls/pushes or if you
> have a diaphragm/check valve failure. I know this doesn't duplicate
> the exact stroke of the pump lobe, but what do you have to lose if it
> indeed fails on the bench and you cut it open to investigate? I think
> you've gone beyond the one or two "bad" pumps off the shelf.
>
> Just in case -- the hoses also fail (soften) internally, so that under
> suction it closes itself off to flow. With a low level in the tank,
> you'll get nothing.....worth checking if your flexible lines at the
> tank feel soft, but you're a bit early at 1989...
>
> Jon
>
11-10-2007, 10:53 PM
#173
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-10-2007, 10:53 PM
#174
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-10-2007, 10:53 PM
#175
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could be
the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-10-2007, 11:14 PM
#176
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-10-2007, 11:14 PM
#177
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-10-2007, 11:14 PM
#178
Guest
Posts: n/a
Re: Multiple fuel pump failures
Dave this is a carbureted vehicle with a mechanical cam driven fuel pump.
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
Still, some vehicles of that vintage have a return line and that could
indeed be the problem.
Cheers,
Earle
"Dave Milne" <jeep@_removethisbit_milne.info> wrote in message
news:qlpZi.61078$7_4.39883@fe3.news.blueyonder.co. uk...
> Is the return to the tank full of crud ? If so, you can get the symptoms
> you
> describe ; fuel pump pumps more fuel than the engine needs, pressure
> builds
> up in the fuel rail, eventually the pump can't pump any more. Vehicle
> stalls
> and wont restart. Over night pressure bleeds off, vehicle runs for another
> 15 mins. Eventually, fuel pump dies.
>
> Had this in a Rover SD1 - took me ages and several fuel pumps to diagnose
> it.
>
> Dave.
>
> "Jon" <jongoddard@gmail.com> wrote in message
> news:1194623999.773226.110960@v3g2000hsg.googlegro ups.com...
>> On Nov 8, 1:44 pm, "Retiredff" <lbat...@bogfeet.net> wrote:
>> > Mike Romain wrote:
>> > > Retiredff wrote:
>> >
>> > >> It failed again.
>> >
>> > > Your Gas filter is in upside down would be my guess.
>> >
>> > > The filter has two outlets. The center one goes to the carb and the
>> > > 'top' one goes to the return line. If the return line outlet isn't
>> > > up
>> > > top, gas siphons back to the tank when it sits air locking the pump.
>> >
>> > > If this is it, two or three primes down the carb with gas will
>> > > normally get it going again.
>> >
>> > > A pinhole leak in the gas line also causes this. It is a suction
>> > > line, so a small leak only makes a stain, it doesn't drip but will
>> > > let air in when it sits. You didn't find a stain though, so...
>> >
>> > > Mike
>> >
>> > Nope. Filter is correct. I found out many years ago that even if it is
> off
>> > by just a small amount, I have problems. Besides, I think even you
>> > would
>> > amazed at how many times you have offered up that very important piece
> of
>> > info that gets overlooked. I find them them to be very benificial in
> that it
>> > continually reminds me to get it correct!
>> >
>> > Any kind of leak won't explain this, Mike. At least, not in a manner
> that
>> > makes sense to me.
>> >
>> > Today, I talked to a friend who owns his own garage, and he convinced
>> > me
> to
>> > forget the NAPA and Advance Auto Parts pumps, and get a Jeep one.
> Provided,
>> > of course, the pump lobe is good. I'll check that tonight.
>> >
>> > Any guesses on how rare those are?
>> >
>> > Chrysler doesn't make/stock/provide them anymore. There are two dealers
> in
>> > the eastern U.S. that have them.- Hide quoted text -
>> >
>> > - Show quoted text -
>>
>> Retired,
>>
>> Can I ask about the mode of failure? You surely have a pile of these
>> sitting around at this point.....and can stuff one in a vise to
>> operate the lever and monitor whether or not it pulls/pushes or if you
>> have a diaphragm/check valve failure. I know this doesn't duplicate
>> the exact stroke of the pump lobe, but what do you have to lose if it
>> indeed fails on the bench and you cut it open to investigate? I think
>> you've gone beyond the one or two "bad" pumps off the shelf.
>>
>> Just in case -- the hoses also fail (soften) internally, so that under
>> suction it closes itself off to flow. With a low level in the tank,
>> you'll get nothing.....worth checking if your flexible lines at the
>> tank feel soft, but you're a bit early at 1989...
>>
>> Jon
>>
>
>
11-11-2007, 01:33 AM
#179
Guest
Posts: n/a
Re: Multiple fuel pump failures
There you go again, the little jealous coward, gerald howard the COWARD
Rivers 61 5612 Martell Dr., Troy, Michigan 48085-3159 (248) 828-7693
pcp02841857pcs.roylok01.mi.comcast.net 68.85.144.108 jrivers@comcast.net
who's only way to get attention is to make a fool of it's self over my
documents (honorable discharge DD214) possessions, successes, manliness and
super Southern California surfing body. With this goat obsession/fetish you
have with your queer buddies. Like when the other kids laughed at your
attempt to use foul language in elementary school play grounds, but it's
just gibberish. Too senile to remember what he last wrote. Like a little rat
dog, Mexican chiwawa barking it's rabid head off, me too, me too.
You know I would visit your Hell hole Michigan on a bet. But you
coward, may visit me in God's country, and I'll treat you like a King:
http://www.----------.com/map.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
"HEMI-Powered" <none@none.sn> wrote in message
news:Xns99E43F9CD9E34ReplyScoreID@216.168.3.30...
>
> all of your inane, insane, senile, and delusional babble copy-
> pasted below is entirely wrong. why don't you come here and see
> for yourself, but you won't, will you? No, COWARD and cuntie, you
> don't have the guts to come here and confront me in person. I'd
> say "if you had a pair", but I know you don't have *****, that
> would take being a man. instead, you have a teenie, weenie little
> cuntie, you queer dyke - and COWARD.
>
>
Rivers 61 5612 Martell Dr., Troy, Michigan 48085-3159 (248) 828-7693
pcp02841857pcs.roylok01.mi.comcast.net 68.85.144.108 jrivers@comcast.net
who's only way to get attention is to make a fool of it's self over my
documents (honorable discharge DD214) possessions, successes, manliness and
super Southern California surfing body. With this goat obsession/fetish you
have with your queer buddies. Like when the other kids laughed at your
attempt to use foul language in elementary school play grounds, but it's
just gibberish. Too senile to remember what he last wrote. Like a little rat
dog, Mexican chiwawa barking it's rabid head off, me too, me too.
You know I would visit your Hell hole Michigan on a bet. But you
coward, may visit me in God's country, and I'll treat you like a King:
http://www.----------.com/map.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
"HEMI-Powered" <none@none.sn> wrote in message
news:Xns99E43F9CD9E34ReplyScoreID@216.168.3.30...
>
> all of your inane, insane, senile, and delusional babble copy-
> pasted below is entirely wrong. why don't you come here and see
> for yourself, but you won't, will you? No, COWARD and cuntie, you
> don't have the guts to come here and confront me in person. I'd
> say "if you had a pair", but I know you don't have *****, that
> would take being a man. instead, you have a teenie, weenie little
> cuntie, you queer dyke - and COWARD.
>
>
11-11-2007, 01:33 AM
#180
Guest
Posts: n/a
Re: Multiple fuel pump failures
There you go again, the little jealous coward, gerald howard the COWARD
Rivers 61 5612 Martell Dr., Troy, Michigan 48085-3159 (248) 828-7693
pcp02841857pcs.roylok01.mi.comcast.net 68.85.144.108 jrivers@comcast.net
who's only way to get attention is to make a fool of it's self over my
documents (honorable discharge DD214) possessions, successes, manliness and
super Southern California surfing body. With this goat obsession/fetish you
have with your queer buddies. Like when the other kids laughed at your
attempt to use foul language in elementary school play grounds, but it's
just gibberish. Too senile to remember what he last wrote. Like a little rat
dog, Mexican chiwawa barking it's rabid head off, me too, me too.
You know I would visit your Hell hole Michigan on a bet. But you
coward, may visit me in God's country, and I'll treat you like a King:
http://www.----------.com/map.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
"HEMI-Powered" <none@none.sn> wrote in message
news:Xns99E43F9CD9E34ReplyScoreID@216.168.3.30...
>
> all of your inane, insane, senile, and delusional babble copy-
> pasted below is entirely wrong. why don't you come here and see
> for yourself, but you won't, will you? No, COWARD and cuntie, you
> don't have the guts to come here and confront me in person. I'd
> say "if you had a pair", but I know you don't have *****, that
> would take being a man. instead, you have a teenie, weenie little
> cuntie, you queer dyke - and COWARD.
>
>
Rivers 61 5612 Martell Dr., Troy, Michigan 48085-3159 (248) 828-7693
pcp02841857pcs.roylok01.mi.comcast.net 68.85.144.108 jrivers@comcast.net
who's only way to get attention is to make a fool of it's self over my
documents (honorable discharge DD214) possessions, successes, manliness and
super Southern California surfing body. With this goat obsession/fetish you
have with your queer buddies. Like when the other kids laughed at your
attempt to use foul language in elementary school play grounds, but it's
just gibberish. Too senile to remember what he last wrote. Like a little rat
dog, Mexican chiwawa barking it's rabid head off, me too, me too.
You know I would visit your Hell hole Michigan on a bet. But you
coward, may visit me in God's country, and I'll treat you like a King:
http://www.----------.com/map.htm
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
"HEMI-Powered" <none@none.sn> wrote in message
news:Xns99E43F9CD9E34ReplyScoreID@216.168.3.30...
>
> all of your inane, insane, senile, and delusional babble copy-
> pasted below is entirely wrong. why don't you come here and see
> for yourself, but you won't, will you? No, COWARD and cuntie, you
> don't have the guts to come here and confront me in person. I'd
> say "if you had a pair", but I know you don't have *****, that
> would take being a man. instead, you have a teenie, weenie little
> cuntie, you queer dyke - and COWARD.
>
>
