92 will not start, need help
Thread Starter
4th Gear
Joined: Mar 2015
Posts: 4
Likes: 0
92 will not start, need help
New to the Forum,
Bought a 92 Coupe a few weeks ago and drove it from Los Angeles to the Bay Area, it ran great and has since until today, went out to the garage today to start it and it tried to start and ran very rough like it was running on half of the cylinders, would turn over fine just would not start and run.
Finally ran the battery down.
Found a small puddle of gas under the drivers side exhaust.
Is it the fuel,pump and sender?
Any help would be appreciated
Thanks
Doug
Bought a 92 Coupe a few weeks ago and drove it from Los Angeles to the Bay Area, it ran great and has since until today, went out to the garage today to start it and it tried to start and ran very rough like it was running on half of the cylinders, would turn over fine just would not start and run.
Finally ran the battery down.
Found a small puddle of gas under the drivers side exhaust.
Is it the fuel,pump and sender?
Any help would be appreciated
Thanks
Doug
Drifting
Joined: May 2012
Posts: 1,336
Likes: 15
From: Mechanicsburg PA
Central PA Events Coordinator
St. Jude Donor '12-'13
New to the Forum,
Bought a 92 Coupe a few weeks ago and drove it from Los Angeles to the Bay Area, it ran great and has since until today, went out to the garage today to start it and it tried to start and ran very rough like it was running on half of the cylinders, would turn over fine just would not start and run.
Finally ran the battery down.
Found a small puddle of gas under the drivers side exhaust.
Is it the fuel,pump and sender? NO
Any help would be appreciated
Thanks
Doug
Bought a 92 Coupe a few weeks ago and drove it from Los Angeles to the Bay Area, it ran great and has since until today, went out to the garage today to start it and it tried to start and ran very rough like it was running on half of the cylinders, would turn over fine just would not start and run.
Finally ran the battery down.
Found a small puddle of gas under the drivers side exhaust.
Is it the fuel,pump and sender? NO
Any help would be appreciated
Thanks
Doug
Leaking injectors... would be my first guess. Second, the O2 sensor on leaking bank. Third choice - the ignition wires of the affected side - check for corrosion to the boot of the Optispark. Been known to be wrong, too.
That's when a FSM comes in handy to isolate the issues.
Here's a few threads on that subject....
https://www.corvetteforum.com/forums...aust-pipe.html
http://www.digitalcorvettes.com/foru...p/t-78563.html
http://www.ls1lt1.com/forum/lt1-%7C-...diagnosis.html
http://tech.corvettecentral.com/2008...tion-overview/
Last edited by Bandit's C4; Mar 23, 2015 at 01:04 AM.
Drifting
Joined: May 2012
Posts: 1,336
Likes: 15
From: Mechanicsburg PA
Central PA Events Coordinator
St. Jude Donor '12-'13
1. Raw gas dripping from exhaust = unburnt fuel from engine cylinder(s) from several circumstances or possibilities.
2. Leaking injectors blocked open - unrestricted and uncontrolled leaking into cylinders; getting purged through exhaust manifold, catalytic converter... ultimately dripping from exhaust puddling under car.
3. A failed O2 sensor may tell the computer to enrichen the fuel ratio ultimately too much to burn... and not firing.
4. The Optispark (distributor) has two separate halves of connectors - each half to each bank of cylinders. A 'no spark' condition might be a corrosion issue in the spark wires (less likely).
5. Most Important- check the oil dipstick for signs/scent of gas contamination. Prolong running in this condition will thin out the oil possibly causing (lack of lubrication) internal damage. If gas is found mixed with in oilpan - change immediately to save engine.
2. Leaking injectors blocked open - unrestricted and uncontrolled leaking into cylinders; getting purged through exhaust manifold, catalytic converter... ultimately dripping from exhaust puddling under car.
3. A failed O2 sensor may tell the computer to enrichen the fuel ratio ultimately too much to burn... and not firing.
4. The Optispark (distributor) has two separate halves of connectors - each half to each bank of cylinders. A 'no spark' condition might be a corrosion issue in the spark wires (less likely).
5. Most Important- check the oil dipstick for signs/scent of gas contamination. Prolong running in this condition will thin out the oil possibly causing (lack of lubrication) internal damage. If gas is found mixed with in oilpan - change immediately to save engine.
Last edited by Bandit's C4; Mar 23, 2015 at 09:54 AM.
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