Question about 1994 Nissan 300ZX

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I have a 1994 Nissan 300zx non-turbo.I just had a fuel injector replaced on my 3rd cylinder. 3 days later after my car was sitting for about 7 hours i started my car an it was making really weird noises when i pressed on the gas. I then noticed that i lot of white smoke was coming from 1 of my tail pipes(i have 4) I turned the car off and i noticed that some type of fluid was leaking from the pipe where the smoke was coming from. Inside that pipe there was alot of black sludge. What could this be? Please help.

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It sounds like you have a blown head gasket. (Would explain why fuel injector went bad)

Posted on Mar 12, 2011

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its running very RICH !!!! TOO MUCH GAS!
check the air fuel mix & the air filter!
it needs a good tune up!
& get the injectors either cleaned or replaced
the fuel injectors from the factory are renound for leaking & setting fire to this model!
you can buy aftermrket injectors that eliminate the this

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Jun 23, 2009 | 1990 Nissan 300ZX

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