Question about 1990 Nissan 300ZX

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Loud knocking sound, complete loss of power, 1991 300zx

I have a loud knocking in the engine( sounds like i trew a rod or something), no power under weight, revs fine, dies, its a 1991 nissan 300zx n/a, with approx. 184k miles, alothough i think the motor was rebouilt. im not sure whats wrong.. ive been told it could be a thrown rod, cracked piston, bad rings, timing is off or bad. if it helps i had no smoke or anything coming from the exhaust, so i dont think that it is anything toooooo serious like an engine rebuid or anything...thanks

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Wont know till you take it to a mechanic for troubleshooting.

Posted on Mar 05, 2009

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