Valve body repair
Valve Bodies, Solenoids and Hydraulic System Testing
Technical guides on valve body repair, hydraulic control circuits, solenoids, separator plates, valves, bores, wear points, testing procedures, rebuilding methods, and related replacement parts. This section is designed for transmission rebuilders, valve body specialists, repair shops, suppliers, and parts professionals working with automatic transmission hydraulic control systems.
Some shops opt to just replace all the solenoids on the valve body. On some models that makes sense as the replacement solenoids are fairly cost effective. For other models, the cost of either OEM or aftermarket replacement solenoids do make it worthwhile to test and only replace the ones that are worn or faulty.