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#1
03-11-2007, 10:16 AM
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Knocking noise
I have a 2000 jeep cherokee. I has about 95,0000 + miles on it. I can hear a knocking noise in the engine. The noise becomes less apparent when i let the car sit and warm up. I've tuned it up and given it an oil change. But still no change. Does anyone have a clue to what this may be? I'm afraid this might be it for my baby.
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#2
03-11-2007, 03:26 PM
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Re: Knocking noise
Could be piston slap.... is it real loud? or does it change when you gas it hard?
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#3
03-11-2007, 03:44 PM
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Re: Knocking noise
Yes, if you press on the gas it gets really loud. However, if the car is warmed up for awhile, the noise is less apparent. If I don't let the Jeep warm up, it sounds like someone is hitting the car block with a crowbar.
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#4
03-11-2007, 03:56 PM
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Re: Knocking noise
Does the noise sound low like in the oil pan area (rod)...? or in the middle of the engine ( piston slap) or the top of the engine (lifter)?
Are there any metal shavings in the oil?
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#5
03-11-2007, 04:18 PM
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Re: Knocking noise
I don't see any metal shavings in the oil. It does sound like it is comming more from the middle of the engine. Is piston slap serious? Curable? Like i said the noise is less apparent as the engine warms up. The less I let the engine warm up the louder it will be.
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