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Disintegrated Oil Pump

13047 Views 51 Replies 23 Participants Last post by  bart_dood
The oil pump in my 2012 Volt disintegrated suddenly without any prior warning just one month out of power train warranty.

GM is not helping me to fix this because I bought the car pre-owned (so, no Good Will warranty even though I have maintained the car as recommended and the prior owner's maintenance records are in the glove box. I spoke with GM customer service and the Electric Vehicle team and all said the same as the dealer service manager: I am out of luck as per GM policy).

So, I spent $2500 to have the oil pump replaced (at a Chevy dealer) and the car ran fine for about a week. Now it's making a tapping/clicking noise and the Knock Sensor error (P0324) has triggered the CEL.

Anyone else have an oil pump disintegrate? I am planning to file a report with the NHTSA so that there is some oversight. But, I am curious if there are any other cases of oil pumps disintegrating like the one in my car did.

Thoughts on what the tapping might be now? It is full of oil and the oil is clean.

1 - 2 of 52 Posts
knocking noise is a rod bearing.motor needs a rebuild or replaced.
I have a similar situation. I have a 2012 Volt with 195k total miles. Of those, about 125k is ICE. Oil pump failed and the engine needs to be replaced. I'm trying to figure out what to do now. I feel my options are pretty limited and my wait in MO for a Bolt EV is end of the year. I do think it's funny the ICE is what failed while I still mostly have the same range of a new one on electric. At least I can drive it close to home!
find an engine here and have a local mechanic put it in,,plenty of low mileage engines.
1 - 2 of 52 Posts
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