Hummer H2. Manual - part 2255

Fig. 59: Oil Pan & Gasket 
Courtesy of GENERAL MOTORS CORP. 

4. Install the oil pan and a new gasket. 

 

2004 Hummer H2 

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

  

Fig. 60: Oil Pan Bolts 
Courtesy of GENERAL MOTORS CORP. 

5. Install the oil pan bolts. 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

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

  

Tighten: Tighten the oil pan to transmission case bolts alternately and evenly to 11 N.m (97 lb in).

6. If previously removed, install the range selector cable bracket and bolts. 

Tighten: Tighten the bolts to 25 N.m (18 lb ft). 

7. Apply a small amount of sealant GM P/N 12346004, (Canadian P/N 10953480) to the threads of the oil 

pan drain plug, if equipped.  

8. Install the oil pan drain plug, if equipped. 

Tighten: Tighten the oil pan drain plug to 18 N.m (13 lb ft). 

9. Lower the vehicle.  

10. Fill the transmission to the proper level with DEXRON(R) III transmission fluid. Refer to Transmission 

Fluid Checking Procedure and Fluid Capacity Specifications .  

11. Check the COLD fluid level reading for initial fill only.  

12. Inspect the oil pan gasket for leaks.  

TRANSMISSION FLUID COOLER HOSE/PIPE REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

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

  

Fig. 61: Air Cleaner Resonator Outlet Duct 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the air cleaner resonator outlet duct. Refer to Air Cleaner Resonator Outlet Duct 

Replacement in Engine Controls - 6.0L.  

2. Remove the transmission fluid cooler hoses from the transmission fluid Auxiliary cooler. Refer to 

Transmission Fluid Cooler Line Quick Connect Fitting . 

 

2004 Hummer H2 

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