Hummer H2. Manual - part 2258

3. Remove the retaining ring from the quick connect fitting.  

4. Discard the retaining ring. 

Fig. 70: Removing Cooler Line 
Courtesy of GENERAL MOTORS CORP. 

5. Pull the cooler line straight out from the quick connect fitting.  

Installation Procedure 

IMPORTANT:

z

Do not reuse any of the existing oil lines or oil line fittings if there is 
excessive corrosion.  

z

Do not reuse any of the existing retaining rings that were removed 
from the existing quick connect fittings. Install new retaining rings.  

z

Ensure the following procedures are performed when installing the 
new retaining rings onto the fittings.  

 

2004 Hummer H2 

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

  

1. Install a new retaining ring into the quick connect fitting using the following procedure: 

Fig. 71: Hooking Retaining Ring Into Quick Connect Fitting 
Courtesy of GENERAL MOTORS CORP. 

2. Hook one of the open ends of the retaining ring in one of the slots in the quick connect fitting. 

 

2004 Hummer H2 

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

  

Fig. 72: Rotating Retaining Ring Around Fitting 
Courtesy of GENERAL MOTORS CORP. 

3. Rotate the retaining ring around the fitting until the retaining ring is positioned with all three ears through 

the three slots on the fitting. 

 

2004 Hummer H2 

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

  

Fig. 73: Improper Retaining Ring Installation 
Courtesy of GENERAL MOTORS CORP. 

4. Do not install the new retaining ring onto the fitting by pushing the retaining ring. 

 

2004 Hummer H2 

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