i have a 1990 chevy caviler and it turns over when u start it but doesnt want to start only happens when its cold out already replaced the fuel filter and the crank sensor and when i am driving it and it decides to act up it bucks before it shuts off so wut could it be? could it be the fuel pump?? help please!!!

 

no promises. sounds like a spark issue. did it have a tune up lately?? if nt try plug wires.. possible bad coil pack.. if u can make it run and run bad pull plug wires 1 at time and put em back on as u go. dnt do it with bare hand!!! lol. coil pack will be 1 and 4 or 2 and 3. have any more details shout em out!! might help ur search..

good luck

 

4got wht engine size u got???