4L80-E Automatic Transmission
REMOVAL1. Drain and remove oil pan, then filter and gasket.
Fig.9 Transmission Wiring And Electrical Connectors.:
2. Disconnect electrical connectors at valve body, Fig. 9.
Fig. 10 Control Valve Assembly:
3. Remove bolts from valve body assembly, manual detent spring and roller assembly, Fig. 10. Ensure five O-rings are attached to pressure manifold assembly.
4. Remove pressure manifold assembly.
5. Remove wiring clips, fluid level indicator stop, lube pipe, lube pipe retainer and clamps.
6. Remove control valve assembly including accumulator housing assembly, valve body gaskets, spacer plate and accumulator gasket.
7. Remove eight check balls from case passages.
8. Remove two speed sensors, bracket assemblies and PWM solenoid screen.
INSTALLATION
Fig. 11 Check Ball Location.:
1. Install eight check balls as shown in Fig. 11
2. Install gasket spacer plate to case.
3. Install complete valve body assembly onto case using guide pin set tool No. J-25025-B or equivalent.
4. Install pressure manifold onto valve body assembly with spring and roller assembly in place.
5. Install wiring clip, then the fluid indicator stop.
6. Install control valve body assembly retaining bolts.
7. Connect wiring harness to connectors. Install large end into case first.
8. Install long end of lube pipe into case.
9. Install lube pipe clip with short bolt, tighten to specification.
10. Tighten valve body bolts to specification.
11. Install filter, then the pan and refill fluid.