1997 Jeep Cherokee Doesnt want to stay running, occasionall

Tiny
LUCIDICACID
  • MEMBER
  • 1997 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
On my 1997 jeep Cherokee 130,000 milage my jeep wont crank over very easily without giving the gas pedal a couple pumps. After engine starts for the first 20-30 minutes of running it will stay on but before that I have to keep the rpms up or engine will shudder to off. Also the jeep vibrates more than normal when on the gas. Vibration stops when the automatic transmission shifts or when I let go of the pedal.
Tuesday, September 15th, 2009 AT 9:22 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,052 POSTS
Is the check engine light on? It sounds like there is a miss in the engine. Also, check to make sure the catylatic converter isn't plugged.
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Friday, September 25th, 2009 AT 8:15 AM
Tiny
LUCIDICACID
  • MEMBER
  • 3 POSTS
No check engine lights and has a new cat.
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Wednesday, September 30th, 2009 AT 1:24 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,052 POSTS
It sounds like there is a problem with one of a few things. It could be a vacuum leak, a plugged or stuck EGR, idle air control valve (IAC), throttle position sensor (TPS), fuel pump. However, without a check engine light, I can't be sure. Check for vacuum leaks. Also, check the EGR valve to make sure it is working and the valve isn't carboned to a point that it is sticking.

Let me know what you find.
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Wednesday, September 30th, 2009 AT 7:07 AM
Tiny
LUCIDICACID
  • MEMBER
  • 3 POSTS
After driving back from the shop I was hearing a poping noise in the driveline. Took a look and saw the u-joints were busted up pretty bad. Obviously dont want to drive the jeep now that that is happening but the rear end isnt stock. Whats the best route of going looking at it. The u joints in the forward attach point look as if they are almost to small.
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Monday, October 5th, 2009 AT 1:02 AM

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