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Old 03-25-2014, 08:45 PM   #1
whoender
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02 Jeep Liberty knocking

I have an 02 Jeep Liberty 3.7. It has a top side engine knock. I removed valve covers to inspect the rocker. All still attached and no sludge or carbon build up. There is not an idiot light on the dash and no smoke nor loss of power. I am at a standstill. Any suggestions?
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Old 03-29-2014, 05:02 PM   #2
rhandwor
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Re: 02 Jeep Liberty knocking

Quote:
Originally Posted by whoender View Post
I have an 02 Jeep Liberty 3.7. It has a top side engine knock. I removed valve covers to inspect the rocker. All still attached and no sludge or carbon build up. There is not an idiot light on the dash and no smoke nor loss of power. I am at a standstill. Any suggestions?
Try some hydraulic lifter cleaner put in oil about a week before you change the oil.
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Old 04-01-2014, 04:43 AM   #3
GTP Dad
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Re: 02 Jeep Liberty knocking

Are you hearing a knock or a tap? A knock usually indicates something in the bottom end of the engine while a tap usually indicates a lifter issue. Try to isolate the location of the source of the problem by knowing where the sound originates will help us diagnose the issue. I also suggest you check the belt tensioner. If it is bad it may be knocking due to excessive movement.
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