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1999 Jeep Cherokee Hard Starting.

Tiny
RMURPHY182
  • MEMBER
  • 1999 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 73,000 MILES
I have a feeling I have a fuel pump problem. Its very hard starting but after several attempts the truck will start. There will be no loss in power when driving. The car sits for long periods of time but I asked a friend to start the truck once a week. The problem is still there. I put chemicals in the gas so it does not age. Do you have any ideas what could be the probem.
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Monday, March 3rd, 2008 AT 6:37 PM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Sounds like the vehicle is bleeding off the fuel pressure try priming the pump before starting.

Turn the key forward and leave on on postion for 5 secs then turn off, repeat this five times, does it fire up better? If so its bleeding off pressure.

Perform a injector leak test and a fuel pressure regulator leak test.
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Monday, March 3rd, 2008 AT 7:02 PM
Tiny
RMURPHY182
  • MEMBER
  • 2 POSTS
They tell me that when I purchase the complete sending unit (Fuel Pump) which come with the filter, pump and also the presser regulator. So I guess that should do the trick.
Thank you for your help.
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Tuesday, March 4th, 2008 AT 11:42 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
No problem, remember if you need anymore help were just a holler away.
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Tuesday, March 4th, 2008 AT 8:07 PM

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