Product Description
Fits: GM TH200C · 1979-up
TransGo lockup valve kit (200-LU) for the GM TH200C that fixes lost lockup control. It is more effective and longer lasting than installing a new pump and pump cover.
Specifications
| Fits | TH200C |
|---|---|
| Years | 1979-up |
Why it fails
Almost all of these transmissions develop a lockup malfunction after 1 to 2 years of service, and many new ones do when they get hot. The cause is cross leaks between the pump and pump cover that let more oil into the actuator valve circuit than the solenoid can exhaust. Cross leaks in the case add pressure to this circuit when there should be none.
A new pump and cover usually fixes the problem only temporarily. Eliminating the cross leaks is hardly possible, so this kit allows proper lockup function even with higher than normal cross leaks.
Corrects, prevents or reduces: engine chugs when stopping, stays locked on heavy throttle, lockup right on top of the 2-3 shift, and stays locked on light throttle.
What's included
- Actuator valve
- Lockup valve
- Spring
