After my GN warms up to normal operating temperature, my stock th200 lockup converter (D5) stays locked up. Makes the car shift harder, have to press down further to upshift, and the car less enjoyable to drive. I put a toggle switch on the hot wire to the transmission so that I have to flip the switch on to have lockup. If I do switch it to lockup, even after I shut the switch off, no 12V to the plug in the side of the transmission, it continues to lockup for about 5 miles of driving before the converter empties out and goes back to no lock-up. Would this be caused by a defective, or going defective, lockup solenoid switch, or some other cause? TIA
Lockup solenoid sticking?
- Thread starter Boxcars
- Start date
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mikestertwo
Well-Known Member
- Joined
- Sep 13, 2006
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Bad lockup solenoid. Change it.
Seemed the most logical problem, but just wanted more opinions before I replaced it. Thanks.
When you replace the Solenoid, remove & check the TCC Apply Valve for binding/sticking= burrs, polish Lands.
TCC Apply Valve location >> Sonnax - Aftermarket replacement transmission, torque converter, and high performance automotive parts underneath Solenoid.
TCC Apply Valve location >> Sonnax - Aftermarket replacement transmission, torque converter, and high performance automotive parts underneath Solenoid.
