Grand Wagoneer fuel supply problem?
02-05-2006, 06:24 PM
#31
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
All you have to do is take off the gas line where it comes into the pump
after you had it running. If gas pours out, the valve is bad.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
"Fred V." wrote:
>
> Thanks Bill
>
> I'll have to get one of those and see if that fixes it.
>
> Fred
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:43E66F71.B8217AB2@***.net...
> > The check valves in the fuel pump are bad, replace pump.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > "Fred V." wrote:
> >>
> >> Could it be the float bowl in the carb? Mine drains out
> >> so it takes a few tries to start it each morning. Maybe yours is worse?
> >>
> >> Fred
> >> 84 GW 5.9
after you had it running. If gas pours out, the valve is bad.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
"Fred V." wrote:
>
> Thanks Bill
>
> I'll have to get one of those and see if that fixes it.
>
> Fred
>
> "L.W. ("ßill") ------ III" <----------@***.net> wrote in message
> news:43E66F71.B8217AB2@***.net...
> > The check valves in the fuel pump are bad, replace pump.
> > God Bless America, Bill O|||||||O
> > mailto:-------------------- http://www.----------.com/
> >
> > "Fred V." wrote:
> >>
> >> Could it be the float bowl in the carb? Mine drains out
> >> so it takes a few tries to start it each morning. Maybe yours is worse?
> >>
> >> Fred
> >> 84 GW 5.9
02-13-2006, 07:57 PM
#32
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
Thanks, Mike (and others):
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
02-13-2006, 07:57 PM
#33
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
Thanks, Mike (and others):
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
02-13-2006, 07:57 PM
#34
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
Thanks, Mike (and others):
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
02-13-2006, 07:57 PM
#35
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
Thanks, Mike (and others):
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
Can't find a fuel tank vent in the manual. There is a vapor
canister filter but I'm not sure that would cause the problem.
I changed out the fuel filter and all went well until the other
day when I started up and let the GW idle with the defroster on
for 30 minutes after a big snowstorm).
The engine died during this period and was extremely difficult to
restart, even with priming, etc. Now after a restart it runs and
starts normally again.
I noticed from the shop manual that there is an in-tank filter
and I still wonder if there could be a tank problem causing this.
I have had a long-standing problem with an inaccurate fuel gauge
(not corrected with replacement) and perhaps the two problems are
connected.
It is such an intermittent symptom it seems very difficult to
troubleshoot.
Thanks,
Frank Townsend
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43E60F6B.1526C9BE@sympatico.ca...
> Either a fuel filter going bad or a plugged up air filter on
> the gas
> tank vent would be my guesses.
>
> When was the last time you changed the air filter on the gas
> tank vent?
> When plugged it makes the vehicle act like it runs out of gas.
> Prime it
> or let it sit for a while and the vacuum goes away and you are
> good to
> go for a bit.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
> Canadian Off Road Trips Photos: Non members can still view!
> Jan/06
> http://www.imagestation.com/album/pi...?id=2115147590
> (More Off Road album links at bottom of the view page)
>
> "F. J. Townsend, III" wrote:
>>
>> Advice from the NG would be most appreciated for the
>> following.
>>
>> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> will
>> stop as if it were out of gas. Cranking does nothing.
>>
>> What does work is to pour gas into the carb then restart.
>> With
>> one or two tries and some pumping the accelerator the Jeep
>> will
>> then start and run normally until the next time - days or
>> weeks
>> later.
>>
>> I suspected problems with fuel tank baffles, but adding gas
>> as I
>> described shouldn't alleviate that.
>>
>> Could this be a symptom of a dying fuel pump?
>>
>> Opinions eagerly solicited!
>>
>> Thanks,
>>
>> Frank
02-14-2006, 09:09 AM
#36
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
The charcoal canister or emissions or vapor canister or whatever name
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
02-14-2006, 09:09 AM
#37
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
The charcoal canister or emissions or vapor canister or whatever name
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
02-14-2006, 09:09 AM
#38
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
The charcoal canister or emissions or vapor canister or whatever name
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
02-14-2006, 09:09 AM
#39
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
The charcoal canister or emissions or vapor canister or whatever name
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
they want to call it is the gas tank vent. If plugged, it 'will' put a
vacuum on the gas tank and carb float bowl that imitates running out of
gas really well.
The air filter on the canister is supposed to be changed every major
tune up or in my case, every time I finish 'playing' in the mud pits. I
have had to drive home with a loose gas cap a few times...
The test for it is to crack open the gas cap when it stalls out. If you
get a whoosh of air and the engine starts back up, you have found your
trouble.
The in-tank filter is just a sock shaped screen. They 'can' plug up,
but man you have to have an amazing amount of crud in the tank to do
that. Blowing back through the gas line can clear a plugged screen or
blow it off the line. If it is that dirty in there, the tank would need
flushing.... You also would get plugged up gas filters very often.
Mike
"F. J. Townsend, III" wrote:
>
> Thanks, Mike (and others):
>
> Can't find a fuel tank vent in the manual. There is a vapor
> canister filter but I'm not sure that would cause the problem.
>
> I changed out the fuel filter and all went well until the other
> day when I started up and let the GW idle with the defroster on
> for 30 minutes after a big snowstorm).
>
> The engine died during this period and was extremely difficult to
> restart, even with priming, etc. Now after a restart it runs and
> starts normally again.
>
> I noticed from the shop manual that there is an in-tank filter
> and I still wonder if there could be a tank problem causing this.
> I have had a long-standing problem with an inaccurate fuel gauge
> (not corrected with replacement) and perhaps the two problems are
> connected.
>
> It is such an intermittent symptom it seems very difficult to
> troubleshoot.
>
> Thanks,
>
> Frank Townsend
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:43E60F6B.1526C9BE@sympatico.ca...
> > Either a fuel filter going bad or a plugged up air filter on
> > the gas
> > tank vent would be my guesses.
> >
> > When was the last time you changed the air filter on the gas
> > tank vent?
> > When plugged it makes the vehicle act like it runs out of gas.
> > Prime it
> > or let it sit for a while and the vacuum goes away and you are
> > good to
> > go for a bit.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> > Canadian Off Road Trips Photos: Non members can still view!
> > Jan/06
> > http://www.imagestation.com/album/pi...?id=2115147590
> > (More Off Road album links at bottom of the view page)
> >
> > "F. J. Townsend, III" wrote:
> >>
> >> Advice from the NG would be most appreciated for the
> >> following.
> >>
> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
> >> will
> >> stop as if it were out of gas. Cranking does nothing.
> >>
> >> What does work is to pour gas into the carb then restart.
> >> With
> >> one or two tries and some pumping the accelerator the Jeep
> >> will
> >> then start and run normally until the next time - days or
> >> weeks
> >> later.
> >>
> >> I suspected problems with fuel tank baffles, but adding gas
> >> as I
> >> described shouldn't alleviate that.
> >>
> >> Could this be a symptom of a dying fuel pump?
> >>
> >> Opinions eagerly solicited!
> >>
> >> Thanks,
> >>
> >> Frank
02-18-2006, 08:15 AM
#40
Guest
Posts: n/a
Re: Grand Wagoneer fuel supply problem?
I replaced my sender unit a few years ago. Now the
sender seems to be having problems again. Or maybe
just a bad connection because of the infamous GW gas tank area rust!
Fred
85 GW
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43F1E4AB.EBCA997C@sympatico.ca...
> The charcoal canister or emissions or vapor canister or whatever name
> they want to call it is the gas tank vent. If plugged, it 'will' put a
> vacuum on the gas tank and carb float bowl that imitates running out of
> gas really well.
>
> The air filter on the canister is supposed to be changed every major
> tune up or in my case, every time I finish 'playing' in the mud pits. I
> have had to drive home with a loose gas cap a few times...
>
> The test for it is to crack open the gas cap when it stalls out. If you
> get a whoosh of air and the engine starts back up, you have found your
> trouble.
>
> The in-tank filter is just a sock shaped screen. They 'can' plug up,
> but man you have to have an amazing amount of crud in the tank to do
> that. Blowing back through the gas line can clear a plugged screen or
> blow it off the line. If it is that dirty in there, the tank would need
> flushing.... You also would get plugged up gas filters very often.
>
> Mike
>
> "F. J. Townsend, III" wrote:
>>
>> Thanks, Mike (and others):
>>
>> Can't find a fuel tank vent in the manual. There is a vapor
>> canister filter but I'm not sure that would cause the problem.
>>
>> I changed out the fuel filter and all went well until the other
>> day when I started up and let the GW idle with the defroster on
>> for 30 minutes after a big snowstorm).
>>
>> The engine died during this period and was extremely difficult to
>> restart, even with priming, etc. Now after a restart it runs and
>> starts normally again.
>>
>> I noticed from the shop manual that there is an in-tank filter
>> and I still wonder if there could be a tank problem causing this.
>> I have had a long-standing problem with an inaccurate fuel gauge
>> (not corrected with replacement) and perhaps the two problems are
>> connected.
>>
>> It is such an intermittent symptom it seems very difficult to
>> troubleshoot.
>>
>> Thanks,
>>
>> Frank Townsend
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43E60F6B.1526C9BE@sympatico.ca...
>> > Either a fuel filter going bad or a plugged up air filter on
>> > the gas
>> > tank vent would be my guesses.
>> >
>> > When was the last time you changed the air filter on the gas
>> > tank vent?
>> > When plugged it makes the vehicle act like it runs out of gas.
>> > Prime it
>> > or let it sit for a while and the vacuum goes away and you are
>> > good to
>> > go for a bit.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> > Canadian Off Road Trips Photos: Non members can still view!
>> > Jan/06
>> > http://www.imagestation.com/album/pi...?id=2115147590
>> > (More Off Road album links at bottom of the view page)
>> >
>> > "F. J. Townsend, III" wrote:
>> >>
>> >> Advice from the NG would be most appreciated for the
>> >> following.
>> >>
>> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> >> will
>> >> stop as if it were out of gas. Cranking does nothing.
>> >>
>> >> What does work is to pour gas into the carb then restart.
>> >> With
>> >> one or two tries and some pumping the accelerator the Jeep
>> >> will
>> >> then start and run normally until the next time - days or
>> >> weeks
>> >> later.
>> >>
>> >> I suspected problems with fuel tank baffles, but adding gas
>> >> as I
>> >> described shouldn't alleviate that.
>> >>
>> >> Could this be a symptom of a dying fuel pump?
>> >>
>> >> Opinions eagerly solicited!
>> >>
>> >> Thanks,
>> >>
>> >> Frank
sender seems to be having problems again. Or maybe
just a bad connection because of the infamous GW gas tank area rust!
Fred
85 GW
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:43F1E4AB.EBCA997C@sympatico.ca...
> The charcoal canister or emissions or vapor canister or whatever name
> they want to call it is the gas tank vent. If plugged, it 'will' put a
> vacuum on the gas tank and carb float bowl that imitates running out of
> gas really well.
>
> The air filter on the canister is supposed to be changed every major
> tune up or in my case, every time I finish 'playing' in the mud pits. I
> have had to drive home with a loose gas cap a few times...
>
> The test for it is to crack open the gas cap when it stalls out. If you
> get a whoosh of air and the engine starts back up, you have found your
> trouble.
>
> The in-tank filter is just a sock shaped screen. They 'can' plug up,
> but man you have to have an amazing amount of crud in the tank to do
> that. Blowing back through the gas line can clear a plugged screen or
> blow it off the line. If it is that dirty in there, the tank would need
> flushing.... You also would get plugged up gas filters very often.
>
> Mike
>
> "F. J. Townsend, III" wrote:
>>
>> Thanks, Mike (and others):
>>
>> Can't find a fuel tank vent in the manual. There is a vapor
>> canister filter but I'm not sure that would cause the problem.
>>
>> I changed out the fuel filter and all went well until the other
>> day when I started up and let the GW idle with the defroster on
>> for 30 minutes after a big snowstorm).
>>
>> The engine died during this period and was extremely difficult to
>> restart, even with priming, etc. Now after a restart it runs and
>> starts normally again.
>>
>> I noticed from the shop manual that there is an in-tank filter
>> and I still wonder if there could be a tank problem causing this.
>> I have had a long-standing problem with an inaccurate fuel gauge
>> (not corrected with replacement) and perhaps the two problems are
>> connected.
>>
>> It is such an intermittent symptom it seems very difficult to
>> troubleshoot.
>>
>> Thanks,
>>
>> Frank Townsend
>>
>> "Mike Romain" <romainm@sympatico.ca> wrote in message
>> news:43E60F6B.1526C9BE@sympatico.ca...
>> > Either a fuel filter going bad or a plugged up air filter on
>> > the gas
>> > tank vent would be my guesses.
>> >
>> > When was the last time you changed the air filter on the gas
>> > tank vent?
>> > When plugged it makes the vehicle act like it runs out of gas.
>> > Prime it
>> > or let it sit for a while and the vacuum goes away and you are
>> > good to
>> > go for a bit.
>> >
>> > Mike
>> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>> > 88 Cherokee 235 BFG AT's
>> > Canadian Off Road Trips Photos: Non members can still view!
>> > Jan/06
>> > http://www.imagestation.com/album/pi...?id=2115147590
>> > (More Off Road album links at bottom of the view page)
>> >
>> > "F. J. Townsend, III" wrote:
>> >>
>> >> Advice from the NG would be most appreciated for the
>> >> following.
>> >>
>> >> 1989 Grand Wagoneer drives and starts well, but on occasion,
>> >> will
>> >> stop as if it were out of gas. Cranking does nothing.
>> >>
>> >> What does work is to pour gas into the carb then restart.
>> >> With
>> >> one or two tries and some pumping the accelerator the Jeep
>> >> will
>> >> then start and run normally until the next time - days or
>> >> weeks
>> >> later.
>> >>
>> >> I suspected problems with fuel tank baffles, but adding gas
>> >> as I
>> >> described shouldn't alleviate that.
>> >>
>> >> Could this be a symptom of a dying fuel pump?
>> >>
>> >> Opinions eagerly solicited!
>> >>
>> >> Thanks,
>> >>
>> >> Frank