FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

No Lock Up



1. Stuck switch valve.
2. Low hydraulic pressure.
3. Defective or leaking valve body.
4. Low fluid level.
5. Faulty oil pump.
6. Worn or broken input shaft seal rings.
7. Aerated fluid.