4L60/4L60-E Automatic Transmission

1. Relieve fuel system pressure and remove fuel lines as follows:

a. Ensure transmission is in park, then set parking brake and block drive wheels.

b. Loosen fuel filler cap to relieve fuel tank pressure.

c. Disconnect three terminal electrical connector at fuel tank.

d. Start engine and allow to run until it stops.

e. Engage starter for three seconds to dissipate fuel line pressure.

f. Remove fuel lines.

2. Disconnect battery ground cable.

3. Remove air cleaner assembly, then disconnect TV cable at its upper end.

4. Raise and support vehicle.

5. Remove propeller shaft from vehicle.

6. Disconnect speedometer cable, shift linkage assembly and electrical connectors from transmission.

7. Remove transmission support brace attaching bolts from converter cover, if equipped.

8. Remove converter cover, then mark flywheel and torque converter for installation.

9. Remove exhaust crossover pipe and catalytic converter attaching bolts from vehicle.

10. Remove torque converter to flywheel bolts and/or nuts.

11. Disconnect catalytic converter support bracket.

12. Position a suitable jack under transmission and raise transmission slightly.

13. Remove transmission crossmember to transmission mount bolt.

14. Remove transmission crossmember to frame bolts and/or insulators, if equipped.

15. Slide crossmember rearward and remove from vehicle.

16. Lower transmission.

17. Disconnect and cap transmission fluid cooler lines.

18. Disconnect TV cable from transmission.

19. Position a suitable jack under engine, then remove transmission to engine attaching bolts.

20. Carefully separate transmission from engine. Install torque converter holding fixture tool No. J-21366 or equivalent.

21. Remove transmission from vehicle.

22. Reverse procedure to install.