Question about 1990 Nissan 300ZX

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300zx N/A Only running on 4 of 6 cylinders. HELP! Also have

Only running on 4 of 6 cylinders. HELP! Also have an oil leak. Not showing on dip stick, but after sitting all winter I started and oil is burning from somewhere in the back of the motor. WOuld this be the rear main seal?

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It could be the rear main seal if You see oil dripping out the back of motor, but check the spark plugs, if 2 are all black and wet w/ oil, the valve seals could be leaking onto tyhe plugs and fouling them out. Good Luck!

Posted on Aug 16, 2009

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Does it smoke white out the tail pipes?

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