1995 Jeep Cherokee ruff running

Tiny
CPDJ143
  • MEMBER
  • 1995 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
I have this problem, I really cant figure it out, hopefully u might point me in the right direction, the jeep starts, it runs for 10 - 15 minutes smooth, then it get s real ruff idle for 3 minutes, then the jeep will run smooth again for 10 -15 minutes and it does it again, I have replaced the fuel filter, I replaced the cps on the transmission bell housing, I tried a ccoil but it didnt make a difference, any help would be appricated
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Friday, August 7th, 2009 AT 9:11 AM

3 Replies

Tiny
DOCFIXIT
  • EXPERT
Hook up fuel pressure gague observe pressure during rough idle. Should be 39-41 psi
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Friday, August 7th, 2009 AT 9:26 AM
Tiny
CPDJ143
  • MEMBER
The gauge goes to just low fuel pressure and thats all the machine says. Not fuel pressure regulator or cold start just low fuel pressure.
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Friday, August 7th, 2009 AT 10:28 AM
Tiny
DOCFIXIT
  • EXPERT
Seems your in ned of a fuel pump
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Sunday, August 9th, 2009 AT 1:58 PM

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