Guest jjohart Posted February 27, 2004 Share Posted February 27, 2004 Hi, I'm still clueless (as always) as to what could be going wrong with my 83 280ZXT. It has been intermittently gone into a weird harmonic from the engine, sounding like a second, higher pitched engine suddenly was running in a different frequency/rev speed, the exhaust sounds pit pit pit pit, not low and throaty, and the weirdest part is the shifter (5 spd) feels WAY TOO VIBRATIONAL in general, like it were attached to a rock crusher, and also seems to be sending an almost electrical/cylinder firing sympathetic pulse, like a rapid fire series of electro-shocks. I'm writing b/c it's happened the third time tonight. It is an intermittent, at this point, it seems to wear or wind down after a couple of minutes. I have absolutely no idea what to tell a mechanic to look for...what could be causing the engine to suddenly become so rough and vibrational...and then return seemingly to normal. Go on, give me the bad news guesses...at this point, I'm stuck living with the bad vibrations until something falls apart! Thanks John Quote Link to comment Share on other sites More sharing options...
johnc Posted February 27, 2004 Share Posted February 27, 2004 Stuck valve? Quote Link to comment Share on other sites More sharing options...
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