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The check engine light came on. Diagnostics on computer said it was cylinder 6

Tiny
RUSTYVANHOY23
  • MEMBER
  • 2004 JEEP LIBERTY
  • 68,000 MILES
Started knocking and losing power. We have a 2004 Jeep Liberty Renegade 3.7 4wd. Never had a problem with it. Last week engine started knocking (there seemed to be an additional knock when you sped up that you could feel vibrate the gas pedal), losing power, and started smoking (white smoke).

Got the Jeep checked out at parts store via computer. It said there was a problem with cylinder 6. Replaced the plug and coil, but that did not fix the problem. What could this be?
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Wednesday, February 8th, 2012 AT 9:41 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,732 POSTS
If it is knocking, chances are it is a rod or main bearing. Have a mechanic listen to it.
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Wednesday, February 8th, 2012 AT 9:44 PM
Tiny
RUSTYVANHOY23
  • MEMBER
  • 2 POSTS
If it were to be a rod or main bearing, how much are we looking at pricewise?
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Wednesday, February 8th, 2012 AT 9:55 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,732 POSTS
Most shops recommend to replace the engine because it will require a new crankshaft and bearings.
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Wednesday, February 8th, 2012 AT 9:59 PM

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