Casband said:I got the car last year and even last year it was having some troubles. It would sometimes be quite hard to start and when it was running if I stopped at stoplights, or stop signs or really any time I came to a complete stop the car would either, have huge surges of power and lurch forward a little on and off, or the car would just die entirely. Progressively it got harder and harder to start until finally near the end of the summer the car would not start unless it was boosted. Then I parked it for the winter and about midway through winter I had to move it so I boosted it and drove it an extremely short distance and parked it again and left it. Now this summer I have been unable to start it entirely and I have no idea what the problem could be. When I put the key in and turn it, the car makes no attempts to even turn over at all, some of the dash lights turn on still and the AC display still shows numbers and accurate ones. The Car alarm still goes off when I hook the battery up and still responds to the key fob turning it on and off. Ive replaced my battery so its not a battery issue. Ive also, gone under the car and skipped the starter, when I do that the engine will turn over continuosly but the car will not fully start or run. I talked to my father and he said it might be the car alarm killing the ignition but Im not sure. What can I do to be able to get this car started and running again? Was the surging problem from the previous year a problem of its own from this new starting one?
post clear detailed pictures of all the spark plugs ,I think that may give a good bit of evidence to prove what i think is the cause of the cars hard starting, and running like crap, and I,m leaning towards a fuel delivery issue at first glance until testing gives more info.(obviously testing after pulling trouble codes would be helpful)
the 1991 was the last and best of the true tuned port L98 engines with most of the previous "bugs" worked out, its a well proven system that just requires following the shop manual in most cases to locate the problem.
This questions re-worded and restated a hundred ways but the answers the same, as always its simply a mater of breaking the problem down to its basics of ignition, strength, and ignition timing and fuel delivery ,and testing mechanical function for compression and valve adjustment and if you do a few tests and use the shop manual you'll locate the problems sources, obviously the engine needs to spin on the starter and have decent compression and the valves adjusted properly and see a consistent 40 psi at the fuel rails and injector pulse and ignition spark at each cylinder
http://forum.grumpysperformance.com/viewtopic.php?f=32&t=1401
http://forum.grumpysperformance.com/viewtopic.php?f=32&t=302
http://forum.grumpysperformance.com/viewtopic.php?f=32&t=596
viewtopic.php?f=80&t=728
http://chevythunder.com/fuel%20injectio ... pg%20A.htm
viewtopic.php?f=32&t=168
http://forum.grumpysperformance.com/viewtopic.php?f=32&t=67
http://www.superchevy.com/how-to/148-02 ... -block-v8/
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