Nov 172015
 

2001 Chevy Silverado HD
Load clacking sound coming from engine after driving for 30 minutes. I know this is normal after star up, and settles down.

  One Response to “2001 Chevy silverato hd”

  1. Check your oil level. You may want to remove the belt and test for the noise to make sure it is internal or external. If it is internal, if the noise gets louder as you rev the engine it would be consistent with a failing rod bearing. If the noise gets louder as you let off the gas and it gets closer to idle it would be consistent with a main bearing failure. If you find it to be an external noise. Try spinning the pulley and see if one sounds out of place.

    How to narrow down an automotive noise.

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