dead cylinder on 1991 Nissan Maxima

my car is sucking and blowing thrue the exaust like a blown head gasket but got good compresion n all 6 cylinders can a vacume leak cause this

by in Glasgow, VA on March 20, 2011
2 answers
ANSWER by on March 20, 2011
Yes, vacuum leaks can cause misfire. Start the engine raise the hood and listen for hissing sound from air leak. You may need a shop with a smoke machine to find it quick for you. Also check for bad fuel injector, these cars had problems with that.
ANSWER by on March 20, 2011
usually when you have vacuum in the exhaust with a miss, it has a bad exhaust valve. have a leakdown test performed to confirm. Roy
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