LT1 Died--Need Some Advice
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From: Lindale, Texas
LT1 Died--Need Some Advice I was driving down the road today, and the car began spittering & sputtering, so I got out of the gas. It leveled off, and I got back on the gas again, and it sputtered again, and then died. The motor will turn over, but it will not start. It has gas in it, so I don't know. I washed the motor last week, but drove it all week without any problems. Any suggestions of what might of happened?? Thanks
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From: Philly
i'm gonna say your fuel pump went out, or you need a new battery or alternator. i'm having a lot of trouble thinking right now, can you be a little more specific on what your car does when you turn the key?
Originally Posted by @nthony
how would it hurt the opti if its been a week since he washed it. it would've dried by now or 2 days after the wash.
they may have a vent, but i got a blowdryer lol
Originally Posted by jkichline
The '96's have better Opti's than the '94. They are much more tolerant of moisture. Its possible that its shot but not likely. Check to see if you have spark. If you have spark, it must be a fuel delivery problem. If you can, check your fuel pressure. If not, at least listen for the fuel pump priming before you crank it. If you don't hear it priming, you'll have to replace it. I just did mine in my SHO. It wasn't too bad.
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Originally Posted by @nthony
how would it hurt the opti if its been a week since he washed it. it would've dried by now or 2 days after the wash.
Here's a good opti disassembly resource for anyone who can use it: http://www.charm.net/~mchaney/optisprk/optisprk.htm
As has been said, fuel delivery could also be the problem, or even a timing chain. Check everything.
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From: Lindale, Texas
well, I checked the fuses, and they are fine. When I turn on the key, the fuel pump is primering like it should. When I took my test light in a couple of the spark plug wires, I got no fire. I even held it up to the manifold to see if fire would jump, and it didn't. with that being done, anyone got any other thoughts? does that pretty much point to the optispark??
If you don't get any spark from the plug wires to ground (and make sure you hold it pretty close, since cranking spark can be weak), next use the same check to see if you get spark between the coil wire (connected at the top of the opti) and ground. If you do, then it's either the opti or a failed timing chain. If the timing chain stopped working completely, you won't get any rocker arm movement or oil pressure. If the chain just jumped a tooth, it's a little trickier to diagnose, but basically you would be getting little to no compression.
Originally Posted by 30th droptop
If you don't get any spark from the plug wires to ground (and make sure you hold it pretty close, since cranking spark can be weak), next use the same check to see if you get spark between the coil wire (connected at the top of the opti) and ground. If you do, then it's either the opti or a failed timing chain. If the timing chain stopped working completely, you won't get any rocker arm movement or oil pressure. If the chain just jumped a tooth, it's a little trickier to diagnose, but basically you would be getting little to no compression.
P.S. Nice find on that website 30th droptop!
Last edited by jkichline; Oct 10, 2006 at 06:01 AM.
