K 2500 Truck 4WD V8-454 7.4L (1990)
Valve Body: Service and Repair
Turbo Hydra-Matic 4L60 (700-R4)
Control Valve Assembly
1.
Drain and remove oil pan and remove filter and gasket.
2.
Disconnect electrical connectors at valve body.
3.
Remove detent spring and roller assembly from valve body and remove valve body to case bolts.
4.
Remove valve body assembly while disconnecting manual control valve link from range selector inner lever and removing throttle lever bracket
from TV link.
5.
Reverse procedure to install. Torque bolts to 8 ft. lbs. and replenish fluid.
Auxiliary Valve Body Replace
1. Raise and support vehicle, then drain transmission fluid.
2. Remove transmission oil pan and filter.
Valve Body
3. Remove two bolts that attach auxiliary accumulator valve tube to control valve assembly and accumulator valve body assembly.
4. Remove two tube clamps, gently pry tube loose from oil pump assembly and auxiliary accumulator valve body assembly.
5. Remove three auxiliary accumulator valve body to transmission case attaching bolts.
6. Remove auxiliary valve body and check ball.
7. Reverse procedure to install.
Control Valve Assembly Replace
1. Disconnect battery ground cable.
