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2001 Z71 5.3

 

Can anyone tell me from the photo where the oil may be leakng from ? I have started to notice small spots on the driveway.

 

Thanks in advance !

 

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Very hard to tell by that photo alone but could be rear main bearing seal, seal plate or oil pan.

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Yep....looks like your starter bolts have started to leak. :rollin:

 

Travis

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Does the 2001's have the crank position sensor above the starter like the newer ones do.

I know on the GMT900's, oil leaking on the starter bolts is usually coming from the CPS above it.

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Does the 2001's have the crank position sensor above the starter like the newer ones do.

I know on the GMT900's, oil leaking on the starter bolts is usually coming from the CPS above it.

I've got a '99 on the hoist right now and yep, sure enough the CPS is there above the starter.

 

Travis

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What's all involved in changing this CPS out if that is where its leaking from ? Is it something that should be left up to a shop ? How much do these run in price ?

 

Thanks for the replies..

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Yep, the CPS is a big culprit for the oil pattern you're seeing

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