Sounds like you have a bad ignition module. It is located left of the radiator on a heat sync platform.

Answered by losone
7 questions asked

Thanks for the reply losone. We still have spark, so could it still be a bad ignition module? We recently did a compression test on #4 and I'm confused, it doesn't hold pressure. The guage will go up to about 130psi then immediatley drop. it sort of goes with the pulses when turning the engine over. we tried another cylinder (#5) and same result. We haven't tried the others because the fitting we were using didn't seem to fit right, or so it seemed. But it got me thinking, is it possible the timing chain could have jumped?

Thanks
CJ

Response from 87GP
3 questions asked

Hummm thats a horse of a different color. At those miles you may be looking at a timing chain and gear. Pull no 1 plug. Rotate the engine until the TDC on the harmonic balancer is aligned with the marker. Take off the distribiter cap. the rotor shoud be pointed at #1 cyl. If not--a timing chain.

Answered by losone
7 questions asked