why does my 94 full size blazer leak oil at back of engine
190

Asked by howard2431 Jan 30, 2014 at 11:47 AM about the 1994 Chevrolet Blazer Sport 2-Door 4WD

Question type: Maintenance & Repair

1 Answer
51,265

John answered 10 years ago

If the oil is coming from the top of the engine, it may be a bad gasket from the intake or valve covers. Very common problem in GM cars for decades. If the oil leak is from under the engine at the very rear where the transmission connects, it may be a main seal leak. This will require the oil pan be removed, the crank shaft lowered and new rear main seal be replaced. Advanced mechanic job for this baby.

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