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1999 Jeep Cherokee rough idle

Tiny
TP84
  • MEMBER
  • 1999 JEEP CHEROKEE
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 147,000 MILES
I HAVE A 99 JEEP WITH 147,000 MILES, IT RECENTLY STARTED RUNNING ROUGH AND ACTING LIKE IT WANTS TO DIE. I JUST PUT A NEW RADIATOR ON IT AND THAT WHEN IT STARTED RUNNING ROUGH. THERE IS NO CHECK ENGINE LIGHT ON. OTHER THAT A TUNE UP WHAT COULD BE A FACTOR? THANKS FOR THE HELP
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Monday, December 17th, 2007 AT 2:11 PM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
When was the last tune up? Go with the basics first, engines don't run without a solid foundation. Plugs wires and filters. Do that and let us know! If you are gonna throw parts at it, lets at least have it run good when done!
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Monday, December 17th, 2007 AT 2:53 PM
Tiny
MCQUE
  • MEMBER
  • 20 POSTS
Make sure you plugged the coolant temperature sensor back in. Did you change the thermostat.
People have been known to put them in backwards.
Re-inspect everthing you touched and everything else nearby where you were working.A loose connection at a sensor, vacuumn line, or even a loose ground wire can cause a rough running condition.
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Monday, December 17th, 2007 AT 7:11 PM

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