Hummer H2. Manual - part 2285

Fig. 174: Transmission Heat Shield Bolts & Heat Shield 
Courtesy of GENERAL MOTORS CORP. 

9. Remove the transmission heat shield.  

10. Disconnect the transmission vent hose, the park/neutral position switch connector, and the main electrical 

connector from the transmission. Refer to Park/Neutral Position Switch Replacement . 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 175: Locating Bolt That Secures Fuel Line Bracket To Left Side Of Transmission 
Courtesy of GENERAL MOTORS CORP. 

11. Remove the bolt that secures the fuel line bracket to the left side of the transmission.  

12. Remove the torque converter access plug.  

13. Remove the flywheel to torque converter bolts. 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

14. Disconnect the transmission oil cooler lines from the transmission. Refer to Transmission Fluid Cooler 

Hose/Pipe Replacement .  

15. Plug the transmission oil cooler line connectors in the transmission case.  

16. Remove the transmission fill tube retaining nut from the transmission stud.  

17. Remove the engine harness bracket retaining nuts from the transmission studs.  

18. Remove the fill tube from the transmission.  

19. Remove the engine harness brackets from the transmission studs and position aside. 

Fig. 176: Identifying Stud & Bolt Securing Transmission To Engine 
Courtesy of GENERAL MOTORS CORP. 

20. Remove the bolts securing the transmission to the engine oil pan. 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 177: Identifying The Six Studs & One Bolt Securing Transmission To Engine 
Courtesy of GENERAL MOTORS CORP. 

21. Remove the six studs and one bolt securing the transmission to the engine.  

22. Pull the transmission straight back.  

23. Remove the transmission from the vehicle while simultaneously removing the fluid level indicator tube.  

24. Perform the automatic transmission oil cooler flushing and flow test. Refer to Automatic Transmission 

Oil Cooler Flushing and Flow Test (J 45096) or Automatic Transmission Oil Cooler Flushing and 
Flow Test (J 35944-A) .  

Installation Procedure 

1. Support the transmission with a transmission jack.  

2. Raise the transmission into place.  

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2