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If you have lower end knocking (rods or mains) an oil pump won't do much good. Plan on an engine rebuild with rod reconditioning and have the crank turned. Also, check the cylinders for taper and while it's down have the heads reconditioned, replacing any valves that look too far gone. Replace cam and lifters if there is any pitting or flattening on either.

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โˆ™ 2005-10-10 18:13:11
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Q: If a 1996 Chevy Lumina has lots of knocking in the engine should you replace the oil pump?
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Related questions

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A water pump should have nothing to do with the bearing in your engine. If you are hearing a knocking from the engine then you are going to need to replace/rebuild. I have seen bad waterpumps make knocking nosies but you said it was new. Id check your work!

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