Hummer H2. Manual - part 2264

Fig. 94: Locating Reverse Boost Valve 
Courtesy of GENERAL MOTORS CORP. 

5. Compress the reverse boost valve sleeve into the bore of the oil pump to expose the retaining ring slot.  

6. Install the reverse boost valve retaining ring, then slowly release tension on the reverse boost valve 

sleeve.  

7. Install the transmission oil filter and pan. Refer to Automatic Transmission Fluid/Filter Replacement . 

8. Lower the vehicle.  

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

Fluid Checking Procedure .  

FILLER TUBE AND SEAL REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

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

  

Fig. 95: Indicator Tube Nut 
Courtesy of GENERAL MOTORS CORP. 

1. Remove the transmission oil level indicator.  

2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.  

3. Remove the right hand catalytic converter. Refer to Catalytic Converter Replacement (Right Hand) in 

 

2004 Hummer H2 

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

  

Engine Exhaust.  

4. Remove the transmission heat shield bolt and shield.  

5. Remove the nut securing the oil lever indicator tube to the transmission housing. 

Fig. 96: Identifying Oil Level Indicator Tube (Without RPO HP2) 
Courtesy of GENERAL MOTORS CORP.

 

2004 Hummer H2 

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

  

6. Place a drain pan under the vehicle.  

7. Remove the oil level indicator tube from the transmission case and seal.  

8. Remove the seal from the transmission case.  

Installation Procedure 

 

2004 Hummer H2 

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