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1991 Nissan Maxima Question: dead cylinder

 

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Visitor, 3.0L V6 SOHC, Glasgow, VA, March 20, 2011, 18:05

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

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  • Answer #1

    torque wrench from Stewart's Auto Repair LLC, March 20, 2011, 18:52
     Master

    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.

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  • Answer #2

    March 20, 2011, 19:39
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     Master

    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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