1996 Jeep Cherokee Bogginh Problem

Tiny
BETSYWPA
  • MEMBER
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 254,000 MILES
A month ago I sent my car for inspection and they called because they couldn't get it to start. I went up and worked and worked at it till I finally changed the spark plugs and it started right up. A week later it starts spitting and sputtering when your driving between take of and 35mph. If you can get over 55 mph it stops. Now it has developed a new problem in the same line. It starts and runs great till it gets warm then it bogs down as soon as you hit the accelerator. I changed the distributor, coil, router, wires, fuel filter, rail and injectors. The only thing we haven't changed is the fuel pump. There was some water in the filter and we blamed it on bad gas so we drained the tank and it still does it. Please help. We don't want to keep putting money into this that aren't making it better. Some day when we figure the old girl out she ought to run like a champ. Its a great car and we have never had a problem. I know its old but it's like brand new. We just want it fixed. Any idea's would be appreciated
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Wednesday, August 6th, 2008 AT 8:58 PM

3 Replies

Tiny
SERVICE WRITER
  • EXPERT
A COUPLE IDEAS COME TO MIND.

Check the computer for codes this may aid in resolving this. Post the code numbers you find.

The fuel pressure should be checked while the problem is happening by running the gauge up to the windsheild and monitoring it while the problem occurs.

This is a 4.0 motor?
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Friday, August 15th, 2008 AT 9:07 AM
Tiny
BETSYWPA
  • MEMBER
We couldn't do the the code check because the check engine light never came on. The dealer tech said he could only check that if the light was on and it never came on. We did do the pressure gauge test at the Jeep dealer and it was running about 42lpsi. Which is okay but not great. We finally eliminated all other problems and dropped the tank and replace the fuel pump. The screen was so clogged it looked like you dragged it through a muddy swamp. Put the new fuel pump in and new screen and it runs like a champ. Probably get another 100,000 miles out of it. I hope, it's a great old Jeep and we use it for everything. I thought for awhile it was going to be gone but it didn't let us down just took awhile to figure out.
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Friday, August 15th, 2008 AT 12:46 PM
Tiny
SERVICE WRITER
  • EXPERT
That was where I was expecting this to go, glad you got it solved.

For the record codes can most certainly set regardless if the light doesn't go on. Doesn't mean they will or won't be set, but can.
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Friday, August 15th, 2008 AT 2:17 PM

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