I found plastic pieces in my oil pan , What could they be from?

Asked by rbishop42 Nov 07, 2016 at 06:44 AM about the 2009 Chevrolet Silverado 1500

Question type: Maintenance & Repair

I changed my oil and found about 10 small plastic bits in bottom of drain pan.
Motor has 153000 miles on it. Any ideas ?

5 Answers
103,225

KenF answered 8 years ago

Plastic timing chain guides possibly, or a plastic lifter guide. Check the lifters by pulling valve cover, if the lifter guides wear, it can allow the lifter to rotate, and gouge the cam lobe. BTW if you want more detailed info, post what motor you have.

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F_O_R answered 8 years ago

It could be plastic timing gear teeth. I had that happen on a Ford I owned. Are the pieces triangular?

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rbishop42 answered 8 years ago

The pieces are irregular shapes and sizes. Motor is 5.3. Thanks for taking the time to answer..

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F_O_R answered 8 years ago

In any case you need to remove the timing cover and fix what ever is wrong. I would install a new timing chain and gear set while I had it open.

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