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

Premain Control Valve Body

Disassembly

Notice:
- Each valve should slide in/out under its own weight.
- When a valve will not slide in/out under its own weight, depending on valve, push it out with a wire or replace valve body open-side down and lightly tap it with a soft hammer.
- If a valve surface or bore is scratched or damaged, replace control valve body.
- Do not drop or lose valves or internal parts.
- Before assembly, make sure all parts are thoroughly clean.
- Apply ATF to all parts and bores.
- Note proper direction of valves and internal parts.
- Do not reuse any part that has been dropped.
- Wrap a screwdriver or rod with tape before using it to insert a valve.





1. Disassemble in order shown in figure.

Inspection
1. Measure spring free lengths.





1 of 2





2 of 2

2. If not within specification, replace spring(s).

Re-assembly
1. Insert bypass spring, bypass valve, and stop plug. Secure them with stop pin.





2. Insert 2-3 shift spring, 2-3 shift valve, and plug. Secure them with stop pin.
3. Insert converter relief valve and converter relief spring. Secure them with spring retainer.





4. Insert lock-up control spring, lock-up control valve, and stop plug. Secure them with stop pin.