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1994 Jeep Cherokee check engine light

Tiny
RKS220
  • MEMBER
  • 1994 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
Used key on off method got code 27same as repair shop told me just replaced 1 fuel injector #6 last check said it was the prolbem it still wont run smooth it runs just fine till engine comes up to full operating temp the the engine light comes on and again runs like someone pulled a plug wire off lumpy and jerky
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Thursday, March 4th, 2010 AT 9:05 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Have you replaced the plug and wire? If so, what does the new plug look like? Also, when it is running poorly, have you checked the injectors for a pulse indicating it is working?
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Thursday, March 4th, 2010 AT 9:28 AM
Tiny
RKS220
  • MEMBER
  • 2 POSTS
Rks220 1994 jeep injector fixed it was a bad wire in harness between injector and computer
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Saturday, February 5th, 2011 AT 1:25 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Glad you got it fixed. Let us know if you have questions in the future.
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Saturday, February 5th, 2011 AT 4:20 AM

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