Question about Buick LeSabre
The engine knocks and is most noticeable when warm and idling. The knock sounds like it's coming from the lower part of the engine.
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Posted on Jan 02, 2017
It's a common problem with these cars i am actually fixing mine as of now. That car is all about oil pressure and when it is low you'll start to get a tap and or what sounds like a knock due to the lifters not having enough pressure. Try taking your oil pan off and check your oil pick up line going from the oil pan to the turbo. A lot of times it gets a lot of sludge build up and makes the pressure little to none. If that looks clear check the slump inside the oil pan and see if that has sludge build up. Well hope this helped
Posted on Jul 23, 2011
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