corvette shtting down
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corvette shtting down
my 1994 corvette is shutting down completely when the temp reaches only 180 to 190 degrees, new water pump, radiator has been removed and cleaned, it runs perfectly in the driveway but when i take it on the road it dies. left me stranded twice.
Last edited by aivanjp; Sep 23, 2017 at 04:09 PM. Reason: missspelled a sentence
Thread Starter
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The car runs fine when just sitting in the driveway. I had the optispark replaced a year ago after a water hose split and water got into the distributor they replaced the water pump when they replaced the optispark.
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No symptoms prior to shutdown it just shuts down - pull over to the side of the road and sit there. It was restarting and cycling off and on - car would drive for a mile or so - but now it won't restart at all until the temp drops down below 150 or so.
Instructor
Joined: Aug 2016
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From: Rockaway NJ
Do you know what brand opti was installed?
Instructor
Joined: Aug 2016
Posts: 188
Likes: 40
From: Rockaway NJ
I was more curious as to which brand may have failed. It's hard to visually tell which brand was installed.. I think MSD has a red housing..
As a first step, You should have the engine checked for any diagnostic trouble codes that may have been generated.
As a first step, You should have the engine checked for any diagnostic trouble codes that may have been generated.
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From: Southlake, TX
Instructor
Joined: Sep 2017
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From: By the redwoods via New Hampshire
May be a bit obvious but, when cleaning the radiator, did you check the cap. could be as simple as that. Don't think it would throw a code, either. Do you know how to check codes?
Racer
Joined: Apr 2016
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From: San Antonio TX
Steve
Racer
Joined: Apr 2016
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From: San Antonio TX
Why would you think that anything having to do with the cooling system is at fault. Your temperatures are normal when the engine dies. And even if the car was overheating, it wouldn't kill the engine. Since there are no codes, the Opti is probably good. I say again: Check the injectors...
Steve
Team Owner
Joined: Jul 2004
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From: Hartford WI
OP's problem relates to temperature-related shutdowns. Nothing with the cooling system would cause this. Could be Opti, but I would bet on injectors, particularly if they are originals. My '89 had this exact problem, no codes, simply would shut down when it reached operating temperature. The injectors can have internal shorts, which manifest when they get hot.
Steve
Steve
Racer
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From: San Antonio TX
Racer
Joined: Apr 2016
Posts: 335
Likes: 93
From: San Antonio TX
Next time it dies, just pull the injector wiring connectors. Measure resistance of each injector with a VOM. As I recall, 14-16 ohms is normal for stock injectors, below 10 ohms is bad, shorted will be close to 0.
Steve
Team Owner
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From: Hartford WI