Mechanics

CHEVY WON'T START WHEN WARM

1993 Chevrolet Corvette

Engine Mechanical problem
1993 Chevy Corvette V8 Two Wheel Drive Automatic 140000 miles

car will start fine when cold. After it warms up (about 5-10 minutes of driving) it will act as though it is out of time. It spins over good but backfires, and will not start. If I leave it for 3-4 hours to cool off, it will start fine. Someone told me the timing chain was stacking on the gears throwing it out of time, until it cooled down. Someone else told me it could be a sensor. This happens about 6 months ago and hasn't done it again until last week. If there is a sensor problem, what sensor is it and where is it located.
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AUDIE10
January 29, 2010.




Hi AUDIE10, Welcome to 2carpros and TY for the donation

Next time it refuses to start when warmed don't wait try to catch it if its fuel or spark related issue do below

Get a starting fluid/ether/better off gas in a spray bottle and spray into the carb or the throttle body on an EFI. Did it start and die? If not disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 in away from ground have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor /distributor pick-up coil, ignition control module, ECM, Ignitor camshaft and crankshaft sensors- Note: If it doesn't apply disregard it

Tiny
Rasmataz
Jan 30, 2010.
I don't think you read my question close enough. It seems to be out of time when warm, spinning and backfiring over and over but will not crank. I asked where the sensor was that might give me this effect. Or was the timing chain stacking on the gear then when cooled slip back in place. Your response was a form response I had already read on this sight. Before I spend $1,000 having my chain and gear replaced I would like to replace the sensor to see if that might be my problem.
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Tiny
AUDIE10
Jan 30, 2010.
I don't think you read my question close enough. I read all the question 3X before I answer paid or not-

I asked where the sensor was that might give me this effect. Or was the timing chain stacking on the gear then when cooled slip back in place.

This will never happen if the timing slipped she won't start it'll probably backfires due to the valve timing being off-When you perform what I gave you it might lead you to a problem with fuel or spark causing it not to start-There's sensors involved in the ignition system, you need to do it

Tiny
Rasmataz
Jan 30, 2010.

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