Hard to start...
06-15-2006, 06:51 PM
#21
Guest
Posts: n/a
Re: Hard to start...
When the fuel pump check valve goes south, the fuel drains from the
fuel line and the Jeep won't start until the line is refilled. It
takes the fuel pump some time to refill the line, depending on how
completely the fuel line has emptied.
The fuel pump is turned on for a couple of seconds (I'm not sure how
long it runs) when the ignition is turned on. On my Jeep, the problem
became progressively worse. At first, I had to 'run the pump' only
once before it would start. After a month or so, I had to 'run the
pump' two or three times before starting the Jeep.
If you see no improvement in starting by 'running the pump', then it
may not be the fuel pump check valve.
On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag" <Seahag@toadymail.net>
wrote:
>OK, I did what you said and left the key on until all the
>guages came up. Turned the key off and then tried to start
>it. I got the same laggy start.
>
>Seahag
>
>"Seahag" <Seahag@toadymail.net> wrote:
>> Rats, I'll have to try that tomorrow. I've already
>> started her today and after the first laggy start-up she
>> starts normally.
>>
>> Seahag
>>
>> <Matt Osborn> wrote:
>>> Fuel pump. Try turning the key on without starting for a
>>> few seconds.
>>> Then turn the key off and back on to engage the starter.
>>> If it fires
>>> right up, then the check valve in the fuel pump is the
>>> likely culprit.
>>>
>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>
>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>lately.
>>>>I have to lean on the key maybe twice as long as in the
>>>>last
>>>>3 years. A Jeep buddy is having the same problem with
>>>>his
>>>>'97 and attributes it to the summer gas additives.
>>>>Thoughts?
>>>>
>>>>Seahag
>>>>
>>>
>>>
>>>
>>> -- msosborn at msosborn dot com
>>
>>
>
-- msosborn at msosborn dot com
fuel line and the Jeep won't start until the line is refilled. It
takes the fuel pump some time to refill the line, depending on how
completely the fuel line has emptied.
The fuel pump is turned on for a couple of seconds (I'm not sure how
long it runs) when the ignition is turned on. On my Jeep, the problem
became progressively worse. At first, I had to 'run the pump' only
once before it would start. After a month or so, I had to 'run the
pump' two or three times before starting the Jeep.
If you see no improvement in starting by 'running the pump', then it
may not be the fuel pump check valve.
On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag" <Seahag@toadymail.net>
wrote:
>OK, I did what you said and left the key on until all the
>guages came up. Turned the key off and then tried to start
>it. I got the same laggy start.
>
>Seahag
>
>"Seahag" <Seahag@toadymail.net> wrote:
>> Rats, I'll have to try that tomorrow. I've already
>> started her today and after the first laggy start-up she
>> starts normally.
>>
>> Seahag
>>
>> <Matt Osborn> wrote:
>>> Fuel pump. Try turning the key on without starting for a
>>> few seconds.
>>> Then turn the key off and back on to engage the starter.
>>> If it fires
>>> right up, then the check valve in the fuel pump is the
>>> likely culprit.
>>>
>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>
>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>lately.
>>>>I have to lean on the key maybe twice as long as in the
>>>>last
>>>>3 years. A Jeep buddy is having the same problem with
>>>>his
>>>>'97 and attributes it to the summer gas additives.
>>>>Thoughts?
>>>>
>>>>Seahag
>>>>
>>>
>>>
>>>
>>> -- msosborn at msosborn dot com
>>
>>
>
-- msosborn at msosborn dot com
06-15-2006, 06:51 PM
#22
Guest
Posts: n/a
Re: Hard to start...
When the fuel pump check valve goes south, the fuel drains from the
fuel line and the Jeep won't start until the line is refilled. It
takes the fuel pump some time to refill the line, depending on how
completely the fuel line has emptied.
The fuel pump is turned on for a couple of seconds (I'm not sure how
long it runs) when the ignition is turned on. On my Jeep, the problem
became progressively worse. At first, I had to 'run the pump' only
once before it would start. After a month or so, I had to 'run the
pump' two or three times before starting the Jeep.
If you see no improvement in starting by 'running the pump', then it
may not be the fuel pump check valve.
On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag" <Seahag@toadymail.net>
wrote:
>OK, I did what you said and left the key on until all the
>guages came up. Turned the key off and then tried to start
>it. I got the same laggy start.
>
>Seahag
>
>"Seahag" <Seahag@toadymail.net> wrote:
>> Rats, I'll have to try that tomorrow. I've already
>> started her today and after the first laggy start-up she
>> starts normally.
>>
>> Seahag
>>
>> <Matt Osborn> wrote:
>>> Fuel pump. Try turning the key on without starting for a
>>> few seconds.
>>> Then turn the key off and back on to engage the starter.
>>> If it fires
>>> right up, then the check valve in the fuel pump is the
>>> likely culprit.
>>>
>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>
>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>lately.
>>>>I have to lean on the key maybe twice as long as in the
>>>>last
>>>>3 years. A Jeep buddy is having the same problem with
>>>>his
>>>>'97 and attributes it to the summer gas additives.
>>>>Thoughts?
>>>>
>>>>Seahag
>>>>
>>>
>>>
>>>
>>> -- msosborn at msosborn dot com
>>
>>
>
-- msosborn at msosborn dot com
fuel line and the Jeep won't start until the line is refilled. It
takes the fuel pump some time to refill the line, depending on how
completely the fuel line has emptied.
The fuel pump is turned on for a couple of seconds (I'm not sure how
long it runs) when the ignition is turned on. On my Jeep, the problem
became progressively worse. At first, I had to 'run the pump' only
once before it would start. After a month or so, I had to 'run the
pump' two or three times before starting the Jeep.
If you see no improvement in starting by 'running the pump', then it
may not be the fuel pump check valve.
On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag" <Seahag@toadymail.net>
wrote:
>OK, I did what you said and left the key on until all the
>guages came up. Turned the key off and then tried to start
>it. I got the same laggy start.
>
>Seahag
>
>"Seahag" <Seahag@toadymail.net> wrote:
>> Rats, I'll have to try that tomorrow. I've already
>> started her today and after the first laggy start-up she
>> starts normally.
>>
>> Seahag
>>
>> <Matt Osborn> wrote:
>>> Fuel pump. Try turning the key on without starting for a
>>> few seconds.
>>> Then turn the key off and back on to engage the starter.
>>> If it fires
>>> right up, then the check valve in the fuel pump is the
>>> likely culprit.
>>>
>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>
>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>lately.
>>>>I have to lean on the key maybe twice as long as in the
>>>>last
>>>>3 years. A Jeep buddy is having the same problem with
>>>>his
>>>>'97 and attributes it to the summer gas additives.
>>>>Thoughts?
>>>>
>>>>Seahag
>>>>
>>>
>>>
>>>
>>> -- msosborn at msosborn dot com
>>
>>
>
-- msosborn at msosborn dot com
06-15-2006, 08:08 PM
#23
Guest
Posts: n/a
Re: Hard to start...
Matt Osborn did pass the time by typing:
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
06-15-2006, 08:08 PM
#24
Guest
Posts: n/a
Re: Hard to start...
Matt Osborn did pass the time by typing:
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
06-15-2006, 08:08 PM
#25
Guest
Posts: n/a
Re: Hard to start...
Matt Osborn did pass the time by typing:
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
> When the fuel pump check valve goes south, the fuel drains from the
> fuel line and the Jeep won't start until the line is refilled. It
> takes the fuel pump some time to refill the line, depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm not sure how
> long it runs) when the ignition is turned on. On my Jeep, the problem
> became progressively worse. At first, I had to 'run the pump' only
> once before it would start. After a month or so, I had to 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the pump', then it
> may not be the fuel pump check valve.
You could do what they do on race cars and just have a switch to run the
pump. :) On/Off
--
DougW
Bastian of useless information.
06-15-2006, 08:52 PM
#26
Guest
Posts: n/a
Re: Hard to start...
Thanks, Mike. I'll give the fuel pump test another run and
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
06-15-2006, 08:52 PM
#27
Guest
Posts: n/a
Re: Hard to start...
Thanks, Mike. I'll give the fuel pump test another run and
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
06-15-2006, 08:52 PM
#28
Guest
Posts: n/a
Re: Hard to start...
Thanks, Mike. I'll give the fuel pump test another run and
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
try the spray. Is regular computer contact cleaner OK to
use?
Seahag
"Mike Romain" <romainm@sympatico.ca> wrote:
>I find when I clean the connections on the throttle body
>and the CPS
> connections with spray contact cleaner, my 4.0 starts a
> lot faster.
> These are all low power computer signal plugs that can be
> affected by
> the slightest corrosion. They always look clean, but the
> effect of
> cleaning them is dramatic.
>
> My 'new' 87 is now getting checked over slowly but surely
> by me and it
> was revving at 2300 when started most times. A fast spray
> on what
> looked like a clean TPS connection and the next start has
> it purring at
> 650 rpm.
>
> 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)
>
> Seahag wrote:
>>
>> OK, I did what you said and left the key on until all the
>> guages came up. Turned the key off and then tried to
>> start
>> it. I got the same laggy start.
>>
>> Seahag
>>
>> "Seahag" <Seahag@toadymail.net> wrote:
>> > Rats, I'll have to try that tomorrow. I've already
>> > started her today and after the first laggy start-up
>> > she
>> > starts normally.
>> >
>> > Seahag
>> >
>> > <Matt Osborn> wrote:
>> >> Fuel pump. Try turning the key on without starting
>> >> for a
>> >> few seconds.
>> >> Then turn the key off and back on to engage the
>> >> starter.
>> >> If it fires
>> >> right up, then the check valve in the fuel pump is the
>> >> likely culprit.
>> >>
>> >> "Seahag" <Seahag@toadymail.net> wrote:
>> >>
>> >>>Clemmie ('02 TJ Sport) has been a bit hard to start
>> >>>lately.
>> >>>I have to lean on the key maybe twice as long as in
>> >>>the
>> >>>last
>> >>>3 years. A Jeep buddy is having the same problem with
>> >>>his
>> >>>'97 and attributes it to the summer gas additives.
>> >>>Thoughts?
>> >>>
>> >>>Seahag
>> >>>
>> >>
>> >>
>> >>
>> >> -- msosborn at msosborn dot com
>> >
>> >
06-15-2006, 09:12 PM
#29
Guest
Posts: n/a
Re: Hard to start...
Maybe I didn't leave the key on long enough. I'll give it
another shot tomorrow. Thanks.
Seahag
<Matt Osborn> wrote in message
news:b4o392hjg178tein5o53u1eife93353b0q@4ax.com...
> When the fuel pump check valve goes south, the fuel drains
> from the
> fuel line and the Jeep won't start until the line is
> refilled. It
> takes the fuel pump some time to refill the line,
> depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm
> not sure how
> long it runs) when the ignition is turned on. On my Jeep,
> the problem
> became progressively worse. At first, I had to 'run the
> pump' only
> once before it would start. After a month or so, I had to
> 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the
> pump', then it
> may not be the fuel pump check valve.
>
>
> On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag"
> <Seahag@toadymail.net>
> wrote:
>
>>OK, I did what you said and left the key on until all the
>>guages came up. Turned the key off and then tried to
>>start
>>it. I got the same laggy start.
>>
>>Seahag
>>
>>"Seahag" <Seahag@toadymail.net> wrote:
>>> Rats, I'll have to try that tomorrow. I've already
>>> started her today and after the first laggy start-up she
>>> starts normally.
>>>
>>> Seahag
>>>
>>> <Matt Osborn> wrote:
>>>> Fuel pump. Try turning the key on without starting for
>>>> a
>>>> few seconds.
>>>> Then turn the key off and back on to engage the
>>>> starter.
>>>> If it fires
>>>> right up, then the check valve in the fuel pump is the
>>>> likely culprit.
>>>>
>>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>>
>>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>>lately.
>>>>>I have to lean on the key maybe twice as long as in the
>>>>>last
>>>>>3 years. A Jeep buddy is having the same problem with
>>>>>his
>>>>>'97 and attributes it to the summer gas additives.
>>>>>Thoughts?
>>>>>
>>>>>Seahag
>>>>>
>>>>
>>>>
>>>>
>>>> -- msosborn at msosborn dot com
>>>
>>>
>>
>
>
>
> -- msosborn at msosborn dot com
another shot tomorrow. Thanks.
Seahag
<Matt Osborn> wrote in message
news:b4o392hjg178tein5o53u1eife93353b0q@4ax.com...
> When the fuel pump check valve goes south, the fuel drains
> from the
> fuel line and the Jeep won't start until the line is
> refilled. It
> takes the fuel pump some time to refill the line,
> depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm
> not sure how
> long it runs) when the ignition is turned on. On my Jeep,
> the problem
> became progressively worse. At first, I had to 'run the
> pump' only
> once before it would start. After a month or so, I had to
> 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the
> pump', then it
> may not be the fuel pump check valve.
>
>
> On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag"
> <Seahag@toadymail.net>
> wrote:
>
>>OK, I did what you said and left the key on until all the
>>guages came up. Turned the key off and then tried to
>>start
>>it. I got the same laggy start.
>>
>>Seahag
>>
>>"Seahag" <Seahag@toadymail.net> wrote:
>>> Rats, I'll have to try that tomorrow. I've already
>>> started her today and after the first laggy start-up she
>>> starts normally.
>>>
>>> Seahag
>>>
>>> <Matt Osborn> wrote:
>>>> Fuel pump. Try turning the key on without starting for
>>>> a
>>>> few seconds.
>>>> Then turn the key off and back on to engage the
>>>> starter.
>>>> If it fires
>>>> right up, then the check valve in the fuel pump is the
>>>> likely culprit.
>>>>
>>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>>
>>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>>lately.
>>>>>I have to lean on the key maybe twice as long as in the
>>>>>last
>>>>>3 years. A Jeep buddy is having the same problem with
>>>>>his
>>>>>'97 and attributes it to the summer gas additives.
>>>>>Thoughts?
>>>>>
>>>>>Seahag
>>>>>
>>>>
>>>>
>>>>
>>>> -- msosborn at msosborn dot com
>>>
>>>
>>
>
>
>
> -- msosborn at msosborn dot com
06-15-2006, 09:12 PM
#30
Guest
Posts: n/a
Re: Hard to start...
Maybe I didn't leave the key on long enough. I'll give it
another shot tomorrow. Thanks.
Seahag
<Matt Osborn> wrote in message
news:b4o392hjg178tein5o53u1eife93353b0q@4ax.com...
> When the fuel pump check valve goes south, the fuel drains
> from the
> fuel line and the Jeep won't start until the line is
> refilled. It
> takes the fuel pump some time to refill the line,
> depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm
> not sure how
> long it runs) when the ignition is turned on. On my Jeep,
> the problem
> became progressively worse. At first, I had to 'run the
> pump' only
> once before it would start. After a month or so, I had to
> 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the
> pump', then it
> may not be the fuel pump check valve.
>
>
> On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag"
> <Seahag@toadymail.net>
> wrote:
>
>>OK, I did what you said and left the key on until all the
>>guages came up. Turned the key off and then tried to
>>start
>>it. I got the same laggy start.
>>
>>Seahag
>>
>>"Seahag" <Seahag@toadymail.net> wrote:
>>> Rats, I'll have to try that tomorrow. I've already
>>> started her today and after the first laggy start-up she
>>> starts normally.
>>>
>>> Seahag
>>>
>>> <Matt Osborn> wrote:
>>>> Fuel pump. Try turning the key on without starting for
>>>> a
>>>> few seconds.
>>>> Then turn the key off and back on to engage the
>>>> starter.
>>>> If it fires
>>>> right up, then the check valve in the fuel pump is the
>>>> likely culprit.
>>>>
>>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>>
>>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>>lately.
>>>>>I have to lean on the key maybe twice as long as in the
>>>>>last
>>>>>3 years. A Jeep buddy is having the same problem with
>>>>>his
>>>>>'97 and attributes it to the summer gas additives.
>>>>>Thoughts?
>>>>>
>>>>>Seahag
>>>>>
>>>>
>>>>
>>>>
>>>> -- msosborn at msosborn dot com
>>>
>>>
>>
>
>
>
> -- msosborn at msosborn dot com
another shot tomorrow. Thanks.
Seahag
<Matt Osborn> wrote in message
news:b4o392hjg178tein5o53u1eife93353b0q@4ax.com...
> When the fuel pump check valve goes south, the fuel drains
> from the
> fuel line and the Jeep won't start until the line is
> refilled. It
> takes the fuel pump some time to refill the line,
> depending on how
> completely the fuel line has emptied.
>
> The fuel pump is turned on for a couple of seconds (I'm
> not sure how
> long it runs) when the ignition is turned on. On my Jeep,
> the problem
> became progressively worse. At first, I had to 'run the
> pump' only
> once before it would start. After a month or so, I had to
> 'run the
> pump' two or three times before starting the Jeep.
>
> If you see no improvement in starting by 'running the
> pump', then it
> may not be the fuel pump check valve.
>
>
> On Thu, 15 Jun 2006 12:12:32 -0400, "Seahag"
> <Seahag@toadymail.net>
> wrote:
>
>>OK, I did what you said and left the key on until all the
>>guages came up. Turned the key off and then tried to
>>start
>>it. I got the same laggy start.
>>
>>Seahag
>>
>>"Seahag" <Seahag@toadymail.net> wrote:
>>> Rats, I'll have to try that tomorrow. I've already
>>> started her today and after the first laggy start-up she
>>> starts normally.
>>>
>>> Seahag
>>>
>>> <Matt Osborn> wrote:
>>>> Fuel pump. Try turning the key on without starting for
>>>> a
>>>> few seconds.
>>>> Then turn the key off and back on to engage the
>>>> starter.
>>>> If it fires
>>>> right up, then the check valve in the fuel pump is the
>>>> likely culprit.
>>>>
>>>> "Seahag" <Seahag@toadymail.net> wrote:
>>>>
>>>>>Clemmie ('02 TJ Sport) has been a bit hard to start
>>>>>lately.
>>>>>I have to lean on the key maybe twice as long as in the
>>>>>last
>>>>>3 years. A Jeep buddy is having the same problem with
>>>>>his
>>>>>'97 and attributes it to the summer gas additives.
>>>>>Thoughts?
>>>>>
>>>>>Seahag
>>>>>
>>>>
>>>>
>>>>
>>>> -- msosborn at msosborn dot com
>>>
>>>
>>
>
>
>
> -- msosborn at msosborn dot com
