C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Torque Converter Solenoid

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Old Oct 5, 2015 | 09:43 PM
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Default Torque Converter Solenoid

My 1992 was running fine & all of a sudden after about 10 minutes it shuts off. Engine just dies. After a few minutes, it will start and run for a short time. My mechanic says the torque converter solenoid is telling the engine to shut down. It flashes a code 27, along with many more when it's acting up. Could this be the problem?
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Old Oct 5, 2015 | 09:54 PM
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Sounds like the " Ignition Control Module" to me...When these go bad the car does exactly what yours is doing..Heat causes the ICM to shut down ,but the car will restart..A bad computer can also cause this problem, but check the ICM first..Do a search in the archives for more information..The converter solinoid may be a seperate problem..WW
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Last edited by WW7; Oct 5, 2015 at 10:25 PM.
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Old Oct 5, 2015 | 10:27 PM
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TCC is a normally open solenoid. It has to close, or you need some other transmission failure, to kill the engine at idle.
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Old Oct 6, 2015 | 12:03 AM
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Unplug the connector at the transmission. If the problem goes away then you have narrowed down the problem.

According to the error code cheat sheet here:

https://www.corvetteforum.com/forums...post1576116036

Error code 27 is a quad driver #2 fault. A quad driver turns on relays and solenoids. Each driver has 4 outputs. Usually it sets a fault if one of the outputs is shorted to ground.
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