Hummer H2. Manual - part 1395

Fig. 37: Rotating Retaining Ring Around Connector 
Courtesy of GENERAL MOTORS CORP. 

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

the 3 slots. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 38: Ensuring Retaining Ring Ears Are Seen From Inside Of Connector & Retaining Ring 
Courtesy of GENERAL MOTORS CORP. 

4. Ensure the 3 retaining ring ears can be seen from the inside of the connector and the retaining ring can 

move freely in the slots. 

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 39: Engine Oil Cooler Line 
Courtesy of GENERAL MOTORS CORP. 

5. Install the engine oil cooler line into the quick connector fitting until a click is heard or felt. 

Pull back on the engine oil cooler lines to ensure a proper connection.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2

  

Fig. 40: Inserting Plastic Cap Onto Fitting 
Courtesy of GENERAL MOTORS CORP. 

6. Snap the plastic cap onto the quick connect fitting.  

7. Ensure that the plastic cap is fully seated against the fitting. 

IMPORTANT: Do not manually depress the retaining clip when installing the plastic cap.

 

2004 Hummer H2 

2004 ENGINE Engine Cooling - Hummer H2