Running rich

Tiny
DMIRANDA08
  • MEMBER
  • 2002 JEEP WRANGLER TJ
  • 4.0L
  • 6 CYL
  • 4WD
  • MANUAL
  • 250,000 MILES
Every sensor changed, not fuel system or computer. Could a worn out timing chain cause this? Why?
Wednesday, January 16th, 2019 AT 10:16 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,278 POSTS
Hello,

Low compression can cause a rich conditioner. can we take a reading of a few cylinders to see where we are at? Here is a guide to help us get started:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please run down this guide and report back.

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Friday, January 18th, 2019 AT 1:49 PM

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