I have an oil leak behind the upper pully for the cam shaft can you tell me what could be the cause.
Buick Q&AAsk Your Question
2006 Buick LaCrosse Question: Oil leak
Answer #1patrick mannion from Greg Solow's Engine Room, May 14, 2011, 10:57Master
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.
ReplyVisitor, May 14, 2011, 20:24
Can you tell me about how much it will cost for meto have it fixed