TSB - Clunking Noise Under Hood

[Klaus]

Document ID # 1230187
2003 HUMMER H2

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Clunking Noise Under Hood and Can Be Felt In the Steering Wheel (Lubricate Intermediate Steering Shaft Assembly) #00-02-35-003B - (01/24/2003)
Clunking Noise Under Hood and can be felt in the Steering Wheel (Lubricate Intermediate Steering Shaft Assembly)
2002-2003 Cadillac Escalade, Escalade EXT

1999-2003 Chevrolet Silverado

2000-2003 Chevrolet Suburban, Tahoe

2002-2003 Chevrolet Avalanche

1999-2003 GMC Sierra

2000-2003 GMC Yukon, Yukon XL

2003 HUMMER H2

With Recirculating Ball-Type Steering

This bulletin is being revised to add model years and models and Correction information. Please discard Corporate Bulletin Number 00-02-35-003A (Section 02 -- Steering).

Condition
Some customers may comment on a clunk type noise coming from under the hood that also can be felt in the steering wheel. These conditions may be more noticeable when turning at low speeds on rough road surfaces.

Correction

Important
DO NOT REPLACE THE FOLLOWING INTERMEDIATE STEERING SHAFT P/Ns

26085548
26049343
26083324
26088325
15772436
26078079

Remove the intermediate shaft from the vehicle and lubricate the intermediate shaft with a Steering Column Intermediate Shaft Lubrication Kit, P/N 26098419. Follow the service procedure below.

Set the front wheels in the straight-ahead position.
Set the steering wheel in the LOCK position.



From inside the vehicle, remove the upper bolt from the upper intermediate steering shaft (1) to the steering column connection.



From under the hood, remove the lower bolt that connects the upper intermediate shaft to the steering gear coupling shaft.
Remove the upper intermediate steering shaft assembly.
From inside the vehicle, slide the shaft down and off the steering column shaft.
From under the hood, slide the shaft towards the dash in order to disengage the shaft from the steering gear coupling shaft.
From inside the vehicle, slide the upper intermediate shaft through the dash boot seal and remove the shaft from the vehicle.




Remove the spacer clip from the end of the intermediate shaft with a pair of needle nose pliers.
Fully extend the shaft by pulling the two shafts apart.



Apply the syringe of grease supplied in the Steering Column Intermediate Shaft Lubrication Kit, P/N 26098419, into the open end of the shaft. Direct the syringe tip as deep as possible into the shaft and dispense the full content of the syringe.



Insert the plug supplied in the Steering Column Intermediate Shaft Lubrication Kit into the open end of the shaft and finger tighten the wing nut.



Place the plugged end of the shaft on a hard surface and apply pressure to collapse the shaft and dissipate the grease through the shaft.
Remove the plug from the shaft and fully extend the shaft.



Inspect the shaft for a minimum of 13 mm (1/2 in) of grease on the shaft splines.
Repeat steps 10-12 if less than 13 mm (1/2 in) of grease is on shaft splines.
Clean the excess grease off of the shaft splines and around the shaft opening.



Carefully spread apart the spacer clip with a pair of pliers.



Reinstall the spacer clip into the open end of the shaft.



Align the spacer clip with the stakes in the shaft.
Reinstall the upper intermediate steering shaft through the dash boot seal and slide the lower end into the steering gear coupling shaft.
Raise the upper end of the intermediate steering shaft and install into the steering column shaft.
Install the upper bolt and nut. Tighten
Tighten the bolt to 47 N·m(35 lb ft).

Install the lower bolt and nut. Tighten
Tighten the bolt to 50 N·m(37 lb ft).

Parts Information
Part Number
Description
Qty

26098419
Lubrication Kit, Steering Column Intermediate Shaft
1


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

E7700
Shaft, Steering Intermediate - R&R (Lubrication)
0.4 hr




GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

© Copyright General Motors Corporation. All Rights Reserved.


--------------------------------------------------------------------------------
Document ID # 1230187
2003 HUMMER H2

[Klaus]

Document ID # 1230187
2003 HUMMER H2

--------------------------------------------------------------------------------

Clunking Noise Under Hood and Can Be Felt In the Steering Wheel (Lubricate Intermediate Steering Shaft Assembly) #00-02-35-003B - (01/24/2003)
Clunking Noise Under Hood and can be felt in the Steering Wheel (Lubricate Intermediate Steering Shaft Assembly)
2002-2003 Cadillac Escalade, Escalade EXT

1999-2003 Chevrolet Silverado

2000-2003 Chevrolet Suburban, Tahoe

2002-2003 Chevrolet Avalanche

1999-2003 GMC Sierra

2000-2003 GMC Yukon, Yukon XL

2003 HUMMER H2

With Recirculating Ball-Type Steering

This bulletin is being revised to add model years and models and Correction information. Please discard Corporate Bulletin Number 00-02-35-003A (Section 02 -- Steering).

Condition
Some customers may comment on a clunk type noise coming from under the hood that also can be felt in the steering wheel. These conditions may be more noticeable when turning at low speeds on rough road surfaces.

Correction

Important
DO NOT REPLACE THE FOLLOWING INTERMEDIATE STEERING SHAFT P/Ns

26085548
26049343
26083324
26088325
15772436
26078079

Remove the intermediate shaft from the vehicle and lubricate the intermediate shaft with a Steering Column Intermediate Shaft Lubrication Kit, P/N 26098419. Follow the service procedure below.

Set the front wheels in the straight-ahead position.
Set the steering wheel in the LOCK position.



From inside the vehicle, remove the upper bolt from the upper intermediate steering shaft (1) to the steering column connection.



From under the hood, remove the lower bolt that connects the upper intermediate shaft to the steering gear coupling shaft.
Remove the upper intermediate steering shaft assembly.
From inside the vehicle, slide the shaft down and off the steering column shaft.
From under the hood, slide the shaft towards the dash in order to disengage the shaft from the steering gear coupling shaft.
From inside the vehicle, slide the upper intermediate shaft through the dash boot seal and remove the shaft from the vehicle.




Remove the spacer clip from the end of the intermediate shaft with a pair of needle nose pliers.
Fully extend the shaft by pulling the two shafts apart.



Apply the syringe of grease supplied in the Steering Column Intermediate Shaft Lubrication Kit, P/N 26098419, into the open end of the shaft. Direct the syringe tip as deep as possible into the shaft and dispense the full content of the syringe.



Insert the plug supplied in the Steering Column Intermediate Shaft Lubrication Kit into the open end of the shaft and finger tighten the wing nut.



Place the plugged end of the shaft on a hard surface and apply pressure to collapse the shaft and dissipate the grease through the shaft.
Remove the plug from the shaft and fully extend the shaft.



Inspect the shaft for a minimum of 13 mm (1/2 in) of grease on the shaft splines.
Repeat steps 10-12 if less than 13 mm (1/2 in) of grease is on shaft splines.
Clean the excess grease off of the shaft splines and around the shaft opening.



Carefully spread apart the spacer clip with a pair of pliers.



Reinstall the spacer clip into the open end of the shaft.



Align the spacer clip with the stakes in the shaft.
Reinstall the upper intermediate steering shaft through the dash boot seal and slide the lower end into the steering gear coupling shaft.
Raise the upper end of the intermediate steering shaft and install into the steering column shaft.
Install the upper bolt and nut. Tighten
Tighten the bolt to 47 N·m(35 lb ft).

Install the lower bolt and nut. Tighten
Tighten the bolt to 50 N·m(37 lb ft).

Parts Information
Part Number
Description
Qty

26098419
Lubrication Kit, Steering Column Intermediate Shaft
1


Parts are currently available from GMSPO.

Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

E7700
Shaft, Steering Intermediate - R&R (Lubrication)
0.4 hr




GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

© Copyright General Motors Corporation. All Rights Reserved.


--------------------------------------------------------------------------------
Document ID # 1230187
2003 HUMMER H2