Quote:
Originally Posted by neoretromax
so my 94 regal gran sport has developed a knocking sound lately. It only seems to knock under load (in drive) and only when the engine oil has warmed up to operating temp. anyone have any idea what this would be? Most recently is has had a new lower intake manifold gasket, new water pump, new plugs, wires and coils, new egr valve and new pcv valve, and new oil pressure sender. It had minimal oil usage before the plugs, wires and coils, but now it uses more oil. about 1/4 quart a week for about 300 miles of travel. There is no oil dripping or leaking under the car and the exhaust from the muffler looks normal. I am most concerned about the knocking as it sounds deep in the engine and it is not lifter tick or pinging which i am hearing. thanks in advance!
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Tranny oil has detergent in it.
You could change your oil useing 1 quart of tranny oil (the other 3 quarts reg oil too).
Then change it again after 3-4 hundred miles.
Worth a try.
Cheers
Stripe