Hummer H2. Manual - part 2275

4. Remove the 1-2 accumulator assembly. Do not remove the spacer plate. Refer to Accumulator 

Assembly, Spacer Plate, and Gaskets . 

Fig. 136: Valve Body Electrical Connections 
Courtesy of GENERAL MOTORS CORP. 

5. Disconnect the internal wiring harness electrical connectors from the following components: 

z

Transmission fluid pressure switch (1)  

z

1-2 shift control solenoid (2)  

z

2-3 shift control solenoid (3)  

z

Pressure control solenoid (4)  

IMPORTANT: Removal of the valve body is not necessary for the following procedure.

 

2004 Hummer H2 

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

  

z

TCC PWM solenoid (5)  

z

3-2 control solenoid (6)  

Fig. 137: TCC PWM Solenoid & Control Valve Body 
Courtesy of GENERAL MOTORS CORP. 

6. Remove the TCC PWM solenoid retainer.  

7. Remove the TCC PWM solenoid in order to access one of the TCC solenoid retaining bolts. 

 

2004 Hummer H2 

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

  

Fig. 138: Locating Pressure Control Solenoid 
Courtesy of GENERAL MOTORS CORP. 

8. Remove the pressure control solenoid retainer.  

9. Remove the pressure control solenoid. 

 

2004 Hummer H2 

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

  

Fig. 139: TCC Solenoid Bolts, Valve Body Bolts & Internal Wiring Harness 
Courtesy of GENERAL MOTORS CORP. 

10. Remove the TCC solenoid retaining bolts and the valve body bolts which retain the internal wiring 

harness. 

 

2004 Hummer H2 

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