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Knocking Noise on Start Up


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Recently I heard a knocking noise on the right hand side of the engine.  After idling for a few mins it goes away.  It appears when i do not start w/ the heat/ac controls turned on I do not hear the noise.  2001 carrera cab 64k miles

I saw another thread which ppl though it could be tensioners, piston/camshaft.  

 

Anyone seen this issue and resolved?

Edited by greg0078
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1 hour ago, greg0078 said:

Recently I heard a knocking noise on the right hand side of the engine.  After idling for a few mins it goes away.  It appears when i do not start w/ the heat/ac controls turned on I do not hear the noise.  2001 carrera cab 64k miles

I saw another thread which ppl though it could be tensioners, piston/camshaft.  

 

Anyone seen this issue and resolved?

 

Unidentified sounds like this can be something small, like a loose part, or they could be something much more serious.  Unless you can isolate the sound source, I would recommend not driving the car and flat bedding it to someone that can do more intensive diagnostics for you.

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