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What would cause a 95 sedan deville to make a very noticeable knocking sound that gets louder as you drive?
Wiki User
∙ 12y ago
I have a 1995 Cadillac Deville, 4.9 engine also, I believe the problem is the oil pump is going bad and the oil is not being properly pressurized. I've already replaced the oil switch located above the oil filter on the engine block, but you have to remove the air filter holding unit first to get to it. As soon as I find someone who can replace mine at a reasonable cost, I'll let you know if that was the problem. Also don't forget to check your oil level first. This engine only holds 5 quarts of oil in the engine alone, and another 1/2 quart in the oil filter itself. Totaling 5 1/2 quarts. Good Luck!
Wiki User
∙ 12y ago
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