Question about 1991 Jeep Cherokee Briarwood

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Will not stay running

Starts, runs for 7 seconds, then dies, suspect fuel pressure issue?

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  • Contributor
  • 27 Answers

Does it have a factory security system?

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

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  • 231 Answers

SOURCE: 1988 jeep 4.0 battery installed backwards now cranks but wont start

have you checked all ofyour fuses? usually when you hook up a battery backwads you end up blowing a fuse and or fry your alternator on older modeled vehicles as there is no protection for it.

Posted on Oct 18, 2008

  • 1 Answer

SOURCE: '93 Grand Cherokee intermittently starts and runs

Hi, I had simmilar problem with my 1993 JGC . I ran out of gas and it would not start until the next day. Then it will start and run until I put the brakes on tho stop and then it will die. It starts right back up. Ended up being the voltage regulator in the ECC/ECM. It is at the mechanics shop right now waiting for the ECC to come in.I will post a follow up.
have Fun,
David C

Posted on Oct 31, 2008

gregstobbe
  • 56 Answers

SOURCE: Won't stay running

sounds like you have a bad ECU unit. have it checked.

Posted on Dec 28, 2008

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SOURCE: 2000 cherokee will not stay running

it is definitely the throttle position sensor, had this problem, sometimes the OBD code won't even come up. as it gets worse your jeep will stop starting right away

Posted on Apr 15, 2009

joe7379
  • 93 Answers

SOURCE: runs for 20 seconds then dies

Tryreplacing tfuel pump or at least have the PSI checked. a failing fuel pump will get worse and worse until dead. What happens is when the pump heats up it stars putting out less and less fuel until it starts to sputter and then die. When it cools off it runs fine again until it heats up again. Fuel cools the pump so make sure you have half a tank on hot days but sounds like it finally just gave out.

Best luck

Joe

Posted on May 28, 2009

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if I'm reading this right...
... the engine starts and dies within a few seconds.
... you jumpered the fuel pump test connector and it will keep running.
... you smell fuel after trying to re-start when it dies.

Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.

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It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.it will keep running.

... you smell fuel after trying to re-start when it dies.


Disconnect the plug to the cold start injector. Even if you have an issue with the engine running then dying after a few seconds after doing this, if you don't smell fuel after disconnecting the cold start injector and try to restart it, the cold start time injector time switch may be failing.


Buy a can of starting fluid and have someone start the engine then spray short bursts of the fluid around all the intake fittings. If spraying the fluid in any particular area keeps the engine running, I'd start looking for leaks around that area.


It does sound like an AFM or COR issue considering it dies after a few seconds, but the fuel smell when trying to restart the engine may be a separate issue that needs corrected / isolated first.

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1 Answer

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Good explanation of symptoms.Thank you.




No assumptions.
Diagnose problem.
Pinch off the fuel return line.
Check fuel pressure--I don't wanna!PITA!
The fuel pump won't run if the fuel filter is plugged up.
Toyota's have a gas tank drain plug!!!!!!!!!
My '84 takes a 3/8 " ratchet. Cool.

There may be a fuel pump relay that is toast,but I suspect the filter,off hand.
A plugged filter will overwork the pump and cause the engine to run rich.

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