2006 Buick LaCrosse Q&A

2006 Buick LaCrosse Question: Oil leak

I have an oil leak behind the upper pully for the cam shaft can you tell me what could be the cause. -
Answer 1
Your engine uses a timing chain, there isn't a camshaft seal per say at the camshaft sprocket side of the engine. Oil seals fail over time and get brittle or the lip of the seal just wears. A build up of crankcase pressure due to a restricted PCV valve could cause seal failure but most likely just a fatigued seal or gasket is causing your leak. -
Comment 1
Can you tell me about how much it will cost for meto have it fixed -
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