1991 Nissan Maxima Q&A

1991 Nissan Maxima Question: dead cylinder

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 -
Answer 1
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 2
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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code at parts store said 1st cylinder not firing.
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