GM 22870635
Solenoid

The first step to replace the control solenoid valve and transmission control module assembly requires removal of the control Valve Body cover. The electrical connections of the input speed sensor and output speed sensor together with shift position switch should be disconnected. First loose the 4 control Valve Body bolts m6 x 80 before placing the control solenoid valve spring to one side because it will detach when removing the control Valve Body assembly. The procedure requires removal of the control Valve Body bolts m6 x 65 and m6 x 42 as well as the three m6 x 95 control Valve Body bolts and m6 x 55 control Valve Body bolt. Remove the control solenoid Valve Body followed by the transmission control module (TCM) assembly after which remove the control solenoid valve assembly filter plate because it is not reusable. The control solenoid valve assembly requires replacement if either the pressure switch manifold seals show damage or contamination. Any damage in the upper channel plate bolt holes requires reviewing since it might result in pcs seal leakage that will require replacement of the upper channel plate when necessary. A replacement new control solenoid valve assembly filter plate needs installation before positioning both the control solenoid Valve Body and tcm assembly. Install the control solenoid valve spring while positioning it correctly. Proceed to install each bolt according to the specified sequence before tightening them all. The installation procedure requires starting with bolts m6 x 80 on four control Valve Body positions followed by bolt m6 x 55 and 3 bolts m6 x 95 then bolt m6 x 42 and bolts m6 x 65. Tighten these bolts to 12 n.m while following the sequence. Reestablish the electrical connection of the input speed sensor and output speed sensor and shift position switch before you place the control Valve Body cover in position. Users must perform the service fast learn adapt procedure following any internal transmission maintenance or component substitution.