Hummer H2. Manual - part 2143

KEY CANNOT BE REMOVED IN THE OFF LOCK POSITION 

Key Cannot Be Removed in the Off Lock Position 

HIGH LOCK EFFORT 

High Lock Effort 

Is the ignition lock cylinder case assembly damaged?

Step 6

Go to Step 4

4

Inspect the lock cylinder for damage. 
Is the lock cylinder damaged?

Go to 

Step 7

Go to Step 5

5

Inspect the ignition switch for damage. 
Is the ignition switch damaged?

Go to 

Step 8

Go to Step 3

6

Tighten the ignition lock cylinder case assembly 
mounting bolts. Refer to Fastener Tightening 
Specifications . 
Did you complete the repair?

Go to 

Step 9

-

7

Replace the lock cylinder. Refer to Ignition Lock 
Cylinder Replacement . 
Did you complete the repair?

Go to 

Step 9

-

8

Replace the ignition switch. Refer to Ignition Switch 
Replacement . 
Did you complete the repair?

Go to 

Step 9

-

9

Operate the system in order to verify the repair. 
Did you correct the condition?

System 

OK

Go to Step 3

Step

Action

Yes

No

1

Did you review the Steering Wheel and Column 
Description and Operation?

Go to 

Step 2

Go to Steering Wheel and Column 

Description and Operation

2

Verify that the key cannot be removed from the 
lock cylinder in the OFF position. 
Does the lock system operate normally?

System 

OK

Go to Step 3

3

Inspect for incorrect, worn, or damaged key. 
Is the key incorrect, worn, or damaged?

Go to 

Step 5

Go to Step 4

4

Inspect for a faulty lock cylinder or release 
button. 
Is the lock cylinder or release button damaged?

Go to 

Step 6

Go to Step 3

5

Replace the key. Refer to Key and Lock 
Cylinder Coding in General Information. 
Did you complete the repair?

Go to 

Step 7

-

6

Replace the lock cylinder. Refer to Ignition 
Lock Cylinder Replacement . 
Did you complete the repair?

Go to 

Step 7

-

7

Operate the system in order to verify the repair. 
Did you correct the condition?

System 

OK

Go to Step 3

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

NOISE IN STEERING COLUMN 

Noise in Steering Column 

Step

Action

Yes

No

1

Did you review the Steering Wheel and Column 
Description and Operation?

Go to 

Step 2

Go to Steering Wheel and 

Column Description and 

Operation

2

Verify that the lock system has a high lock effort. 
Does the lock system operate normally?

System 

OK

Go to Step 3

3

Inspect for an incorrect, worn, or damaged key. 
Is the key incorrect, worn, or damaged?

Go to 

Step 7

Go to Step 4

4

Inspect for a faulty lock cylinder. 
Is the lock cylinder damaged?

Go to 

Step 8

Go to Step 5

5

Inspect the ignition lock cylinder case assembly for 
damage. 
Is the ignition lock cylinder case assembly 
damaged?

Go to 

Step 9

Go to Step 6

6

Inspect the ignition switch assembly for damage. 
Is the ignition switch assembly damaged?

Go to 

Step 10

Go to Step 7

7

Replace the key. Refer to Key and Lock Cylinder 
Coding in General Information. 
Did you complete the repair?

Go to 

Step 11

-

8

Replace the lock cylinder. Refer to Ignition Lock 
Cylinder Replacement . 
Did you complete the repair?

Go to 

Step 11

-

9

Tighten the ignition lock cylinder case assembly. 
Refer to Fastener Tightening Specifications . 
Did you complete the repair?

Go to 

Step 11

-

10

Replace the ignition switch. Refer to Ignition 
Switch Replacement . 
Did you complete the repair?

Go to 

Step 11

-

11

Operate the system in order to verify the repair. 
Did you correct the condition?

System 

OK

Go to Step 3

Step

Action

Yes

No

1

Did you review the Steering Wheel and Column Description and 
perform the necessary inspections?

Go to 

Step 2

Go to Symptoms - 

Steering Wheel and 

Column

2

Verify that noise is present in the steering column during 
operation. 
Is noise present in the steering column during operation?

Go to 

Step 3

System OK

3

Inspect the steering column components for looseness. 
Is the steering column components loose?

Go to 

Step 10

Go to Step 4

4

Inspect the SIR coil for noise. 

Go to 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

HIGH SHIFT EFFORT 

High Shift Effort 

Is the SIR coil noisy?

Step 11

Go to Step 5

5

Inspect the horn contact ring for lubrication. 
Is the horn contact ring lubricated?

Go to 

Step 12

Go to Step 6

6

Inspect the lock plate retaining ring for the correct installation. 
Is the lock plate retaining ring installed properly?

Go to 

Step 13

Go to Step 7

7

Inspect the shaft bearing for the following conditions: 

z

Damage  

z

Lubrication  

z

Wear  

z

Proper seating  

 
Are the bearings in need of repair or replacement?

Go to 

Step 14

Go to Step 8

8

Inspect the spherical joint for lubrication. 
Is the spherical joint lubricated?

Go to 

Step 15

Go to Step 9

9

Inspect the steering column coupling for looseness. 
Is the steering column coupling loose?

Go to 

Step 16

Go to Step 3

10

Tighten the steering column components to specifications. Refer 
to Fastener Tightening Specifications . 
Did you complete the repair?

Go to 

Step 17

-

11

Replace the SIR coil. Refer to Inflatable Restraint Steering 
Wheel Module Coil Replacement (Coil) in SIR. 
Did you complete the repair?

Go to 

Step 17

-

12

Lubricate the horn contact ring. 
Did you complete the repair?

Go to 

Step 17

-

13

Install the lock plate retaining ring properly. 
Did you complete the repair?

Go to 

Step 17

-

14

Repair the shaft bearings as necessary. Refer to Turn Signal 
Cancel Cam and Steering Shaft Upper Bearing Spring 
Replacement and to Steering Column Shaft Replacement . 
Did you complete the repair?

Go to 

Step 17

-

15

Lubricate the spherical joints. 
Did you complete the repair?

Go to 

Step 17

-

16

Tighten the steering column coupling to specifications. Refer to 
Fastener Tightening Specifications . 
Did you complete the repair?

Go to 

Step 17

-

17

Operate the system in order to verify the repair. 
Did you correct the condition?

System 

OK

Go to Step 3

Step

Action

Yes

No

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

LOOSENESS IN STEERING COLUMN 

Looseness in Steering Column 

1

Did you review the Steering Wheel and Column 
Description and Operation?

Go to 

Step 2

Go to Steering Wheel and 

Column Description and 

Operation

2

Verify that a high shift effort is required in order to shift 
out of the PARK position. 
Does the shifter operate normally?

System 

OK

Go to Step 3

3

Inspect for worn or damaged shift cable components. 
Are the shift cable components worn or damaged?

Go to 

Step 5

Go to Step 4

4

Inspect the shift cable for binding or misadjustment. 
Is the shift cable binding or misadjusted?

Go to 

Step 6

Go to Step 7

5

Replace the shift cable. Refer to Automatic 
Transmission Range Selector Cable Replacement in 
Automatic Transmission - 4L60-E/4L65-E. 
Did you complete the repair?

Go to 

Step 7

-

6

Adjust the shift cable. Refer to Automatic Transmission 
Range Selector Cable Adjustment in Automatic 
Transmission - 4L60-E/4L65-E. 
Did you complete the repair?

Go to 

Step 7

-

7

Operate the system in order to verify the repair. 
Did you correct the condition?

System 

OK

Go to Step 2

Step

Action

Yes

No

1

Did you review the Steering Wheel and Column - Tilt 
Description and Operation and perform the necessary 
inspections?

Go to 

Step 2

Go to Symptoms - 

Steering Wheel and 

Column

2

Verify that the steering column is loose. 
Is the steering column loose?

Go to 

Step 3

System OK

3

Inspect the steering column mounting brackets for looseness. 
Are the steering column mounting brackets loose?

Go to 

Step 8

Go to Step 4

4

Verify that the steering column bracket capsule is not sheared. 
Is the steering column bracket capsule sheared?

Go to 

Step 9

Go to Step 5

5

Inspect the support screws for looseness. 
Are the support screws loose?

Go to 

Step 10

Go to Step 6

6

Inspect the intermediate shaft for worn joints or looseness. 
Is the intermediate joint worn or loose?

Go to 

Step 11

Go to Step 7

7

Inspect the tilt head, support and pivot pins for looseness. 
Are there any loose components?

Go to 

Step 12

Go to Step 2

8

Tighten the brackets to specifications. Refer to Fastener 
Tightening Specifications . 
Did you complete the repair?

Go to 

Step 13

-

Replace the jacket assembly. Refer to Steering Column Jacket 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2