Hummer H2. Manual - part 2166

Fig. 91: Inserting J 42640 To Lock Steering Column 
Courtesy of GENERAL MOTORS CORP. 

10. Unlock the steering column by removing J 42640 from the lower trim cover access hole.  

11. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.  

STEERING COLUMN SEAL REPLACEMENT 

Tools Required 

J 42640 Steering Column Lock Pin 

Removal Procedure 

NOTE:

Once the steering column is removed from the vehicle, the column is extremely 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 92: Inserting J 42640 To Lock Steering Column 
Courtesy of GENERAL MOTORS CORP. 

susceptible to damage. Dropping the column assembly on the end could 
collapse the steering shaft or loosen the plastic injections, which maintain 
column rigidity. Leaning on the column assembly could cause the jacket to 
bend or deform. Any of the above damage could impair the columns collapsible 
design. Do NOT hammer on the end of the shaft, because hammering could 
loosen the plastic injections, which maintain column rigidity. If you need to 
remove the steering wheel, refer to the Steering Wheel Replacement procedure 
in this section.

NOTE:

The front wheels of the vehicle must be maintained in the straight ahead 
position and the steering column must be in the LOCK position before 
disconnecting the steering column or intermediate shaft. Failure to follow 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

1. Turn the steering wheel so that the front wheels are pointing straight ahead.  

2. Turn the ignition switch to the lock position and remove the key.  

3. Lock the steering column through the access hole in the lower steering column trim cover using J 42640 . 

Fig. 93: Upper Intermediate Shaft & Lower Intermediate Shaft

these procedures will cause improper alignment of some components 
during installation and result in damage to the SIR coil assembly.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Courtesy of GENERAL MOTORS CORP.

4. Remove the upper intermediate shaft to the lower intermediate shaft pinch bolt.  

5. Disconnect the upper intermediate shaft from the lower intermediate shaft. 

Fig. 94: Upper Intermediate Shaft Boot 
Courtesy of GENERAL MOTORS CORP. 

6. Remove the upper intermediate shaft boot.  

Installation Procedure 

IMPORTANT: Note the direction of upper intermediate shaft to steering column pinch 

bolt for installation. The bolt must be installed in the same direction it was 
removed.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2