GMC Yukon 2000–2006

Owner complaint2005 GMC YUKON ・ 2008-09-22

Steering wheel difficult to turn during turns

1. 1Fault

   WHILE DRIVING APPROXIMATELY 25 MPH (= 40.2 km/h) AND MAKING A LEFT TURN, THE STEERING WHEEL BECAME DIFFICULT TO TURN.

   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   THE DEALER RE-LUBED THE STEERING SHAFT.

   What the documents say to do

   Steering intermediate shaft clunk

   Confirm

   • When properly lubricated, there should be 13 mm (1/2 inch) of grease showing on the shaft splines.

   Repair

   1. Replace the upper intermediate steering shaft assembly.
   2. There are significant differences between the car and truck procedures: the lubricant is applied to a different part of the steering system and uses a different lubrication kit, 26098419.

Manufacturer communication2000–2006 GMC YUKON ・ 2008-07-14

Upper Intermediate Steering Shaft Clunking Noise

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   • Intermediate Steering Shaft: replaced

Manufacturer communication2005–2006 GMC YUKON ・ 2006-03-16

Intermediate steering shaft clunk noise or stick-slip communication

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   EI05061 - INTERMEDIATE STEERING SHAFT CLUNK NOISE OR STICK-SLIP (FOLLOW STRATEGY BASED DIAGNOSTICS). 05-02-35-003 AND 05-02-35-003A NOT YET RECEIVED. *TT

   What the documents say to do

   Steering intermediate shaft clunk

   Confirm

   • When properly lubricated, there should be 13 mm (1/2 inch) of grease showing on the shaft splines.

   Repair

   1. Replace the upper intermediate steering shaft assembly.
   2. There are significant differences between the car and truck procedures: the lubricant is applied to a different part of the steering system and uses a different lubrication kit, 26098419.

Manufacturer communication2004–2006 GMC YUKON ・ 2005-02-11

Clunking Noise Under Hood and Steering Wheel Vibration

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   CLUNKING NOISE UNDER HOOD AND CAN BE FELT IN STEERING WHEEL. *EH UPDATED *EH UPDATED. *KB

   What the documents say to do

   Steering intermediate shaft clunk

   Confirm

   • When properly lubricated, there should be 13 mm (1/2 inch) of grease showing on the shaft splines.

   Repair

   1. Replace the upper intermediate steering shaft assembly.
   2. There are significant differences between the car and truck procedures: the lubricant is applied to a different part of the steering system and uses a different lubrication kit, 26098419.

Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2018-06-11(2 earlier editions of this document folded here)

Power steering pump and line replacement procedure

1. 1Fault

   • In rare cases there is a lack of steering assist when stopped or during parking lot type maneuvers.
   • The condition goes away or greatly improves once the vehicle begins to move or is above parking lot speeds.
   ↓→

2. 2Finding the cause

   Possible causes

   • The concern can be aggravated by worn tires, low tire air pressure, low power steering pump pressures, and tires larger than stock size.

   Steps to confirm (in the document’s order)

   1. Perform the "Power Steering System Test" found in SI and make any necessary repairs based on system diagnosis.
   2. To tell whether a 670 gear box is fitted, inspect the mounting bolts that attach the stub shaft housing; a 670 gear box has only 3 mounting bolts.
   ↓→

3. 3Correction

   • Line: replaced
   • Power Steering Pump: replaced

   Repair

   1. If a C/K 1500 Series vehicle is equipped with a 670 gear box, replacing it with a 680 gear box may increase the customer satisfaction.
   2. When replacing a 670 gear box with a 680 gear box, replace the power steering gear, union fitting and both inlet O-ring seals.

   Parts

   • Parts (C/K 1500 series only): 88965542 Power Steering Gear, 26025709 Union Fitting, 26001594 Inlet O-ring Seal.

   Part numbers printed in the document

   • 88965542Gear, Steering (Remanufacture)Look up at RockAuto (aftermarket candidates) ↗Search the web ↗

     Replaced by: 19330495as stated by GMPartsGiant (checked 2026-10-06) ↗Look up at RockAuto (aftermarket candidates) ↗Search the web ↗

   • 26025709Fitting,P/S PumpLook up at RockAuto (aftermarket candidates) ↗Search the web ↗

     No successor statedas stated by GMPartsGiant (checked 2026-10-06) ↗

   • 26001594Seal,P/S Fluid Cooling Pipe(O Ring)Look up at RockAuto (aftermarket candidates) ↗Search the web ↗

     No successor statedas stated by GMPartsGiant (checked 2026-10-06) ↗

   The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

   Caution

   • For C/K 1500 series vehicles, if diagnostics did not lead to any repair, the concern is a normal operating characteristic.
   • If the stub shaft housing has no mounting bolts or has 4 bolts, do not proceed with this bulletin; the vehicle does not have a 670 gear box.
   • It is recommended in all cases that the proper tire size and the maximum tire pressure are set to the manufacturer's specification on the door placard, especially for the front tires.

Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2012-08-07

GM Power Steering Assist Concerns Diagnosis

1. 1Fault

   Not stated

   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   GENERAL MOTORS: DIAGNOSING POWER STEERING CONCERNS. IN RARE CASES, CUSTOMERS MAY COMMENT ON A LACK OF STEERING ASSIST WHEN STOPPED OR DURING PARKING LOT TYPE OF MANEUVERS. *JS UPDATED 09/02/14*LJ

   What the documents say to do

   Hydro-boost brake assist and power steering share one hydraulic supply (four campaigns)

   Confirm

   • Perform the "Power Steering System Test" found in SI and make any necessary repairs based on system diagnosis.

   Repair

   1. Dealers replace the hydro-boost relief valve.
   2. Dealers test the hydro-boost assembly for functional operation and replace it if it fails.

   Caution

   • An inoperative pump raises steering and braking effort but does not completely remove the ability to steer or slow the vehicle.

Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2017-08-15

Power Steering Pump Whine Noise

1. 1Fault

   • Noise
   • Owners may report a whine noise that normal diagnostics trace to the power steering pump, most commonly heard between idle and 2000 rpm.
   ↓→

2. 2Finding the cause

   • Power Steering Pump: design or manufacturing

   Possible causes

   • A new design power steering pump that helps improve or eliminate this noise was introduced with the new body style pickups and utilities from model year 2007 and the 2008 H2.
   ↓→

3. 3Correction

   • Power Steering System: cleaned
   • Power Steering Pump: replaced

   Repair

   1. GM dealers report that flushing and refilling the power steering system with Lucas Power Steering Fluid with Conditioners has reduced or eliminated the noise; GM Engineering has not evaluated this product.
   2. For vehicles built before that change, or if the Lucas fluid is not readily available, install the latest design GM power steering pump, looking up the part number in the GM Electronic Parts Catalog (EPC).
   3. The warranty labor operation is E9523, Flush and Bleed Power Steering System, 0.9 hour.

   Parts

   • The fluid is Lucas PN 10442, a synthetic base fluid sold in pint containers at most auto parts stores; most applications need 6 to 8 pints to flush and fill the system.

Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

Rough Idle Preliminary Information

1. 1Fault

   • Misfire or rough idle
   • A slight rough idle with no DTCs or other engine performance concerns; comparison vehicles may show the same concern.
   • In some instances an occasional misfire may register on the Tech 2 at idle, but no DTCs will be stored.
   ↓→

2. 2Finding the cause

   Steps to confirm (in the document’s order)

   • Compare the concern to a like vehicle; if it is worse than the like vehicle, complete SI diagnosis and repair as necessary.
   ↓→

3. 3Correction

   Caution

   • If SI diagnosis for Rough, Unstable, or Incorrect Idle is inconclusive, or the concern is the same as the like vehicle, consider it an idle characteristic of the vehicle and attempt no repairs.

Manufacturer communication2003–2006 GMC YUKON DENALI ・ 2007-09-19

Gear Box Power Steering Pump P/S Performance Concerns

1. 1Fault

   Not stated

   ↓→

2. 2Finding the cause

   • Power Steering Pump: failed
   ↓→

3. 3Correction

   GEAR BOX POWER STEERING PUMP, P/S PERFORMANCE CONCERNS. *NJ UPDATED ON 6/30/2011. *KB

Manufacturer communication2003–2005 GMC YUKON ・ 2005-11-08

Service Rear Wheel Steering System DTC C0455 Communication

1. 1Fault

   • C0455
   ↓→

2. 2Finding the cause

   • Rear Wheel Steering: failed
   ↓→

3. 3Correction

   DIAGNOSTIC TROUBLE CODE C0455, SERVICE REAR WHEEL STEERING, SYSTEM JUMPS FROM 4-WHEEL STEER TO 2-WHEEL STEER. *TT

Manufacturer communication2001–2005 GMC YUKON ・ 2005-05-11

Steering Idler Arm Inspection Procedure

1. 1Fault

   Not stated

   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   STEERING IDLER ARM INSPECTION PROCEDURE. *TT

Manufacturer communication2003–2005 GMC YUKON ・ 2005-05-10

Steering Gear Whistle Noise on Turns

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   STEERING GEAR WHISTLE NOISE ON TURNS. *EH

Manufacturer communication2000–2006 GMC YUKON ・ 2005-04-21

Steering Assist or Shudder During Low-Speed Maneuvers

1. 1Fault

   • Vibration or shudder
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   LACK OF STEERING ASSIST OR SHUDDER DURING PARKING LOT TYPE MANEUVERS. *TT

Manufacturer communication2002–2005 GMC YUKON ・ 2005-04-19

QUADRASTEER Intermittent 4-Wheel Steer Message Service

1. 1Fault

   Not stated

   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   QUADRASTEER INTERMITTENT SERVICE 4-WHEEL STEER MESSAGE. *TT

Manufacturer communication2003–2005 GMC YUKON ・ 2005-01-31

4 Wheel Steer Message with Diagnostic Trouble Code C0455 Service Communication

1. 1Fault

   • C0455
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   SERVICE 4 WHEEL STEER MESSAGE WITH DIAGNOSTIC TROUBLE CODE C0455. *EH

Manufacturer communication2001–2006 GMC YUKON ・ 2004-12-15

Pop/Clunk/Click Noise on Right or Left Turns

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   POP/CLUNK/CLICK NOISE ON RIGHT OR LEFT TURNS. *EH

Owner complaint2005 GMC YUKON ・ 2011-08-15

Steering shaft clanking noise while driving

1. 1Fault

   • Noise
   ↓→

2. 2Finding the cause

   • Intermediate Steering Shaft: failed
   ↓→

3. 3Correction

   Not stated

Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2017-08-15

Unwanted or Phantom Phone Calls Diagnosis and Repair

1. 1Fault

   • U1500
   • B1000
   • A customer may report that the OnStar system attempts or completes phone calls that the operator of the vehicle did not initiate.
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   This Preliminary Information communication provides information to the technician the steps needed to diagnose and repair the vehicles that may have unwanted or phantom phone calls. Technician will need to determine what type of call the customer is having that is unwanted. The vehicle may receive an incoming call just like any other phone. Typically the customer will hear the phone ringing in the vehicle. This scenario also includes incoming Bluetooth calls. One type of unwanted call can be made if the key pad is faulty the OnStar system will try to make a blue button call for shorted voltage in the circuits. The OnStar module could have an internal fault and produce a ″Phone Unavailable″ audio message also it may have a Diagnostic Trouble Code U1500 or B1000. Refer to diagnostics for the Diagnostic Trouble Code making sure to follow any applicable Bulletins or Preliminary Information sheets. A “Ready” or “OnStar ready” audio message heard while driving. In some cases it has been found that the customer is inadvertently pressing the ″push to talk″ button on the steering wheel controls. On rare occasions, other issues in the steering column or Steering Wheel Control system may induce this concern.

Owner complaint2005 GMC YUKON ・ 2014-03-12

Engine stalls while moving slowly in parking lot, twice in 3 months

1. 1Fault

   • Misfire or rough idle
   • Vibration or shudder
   ↓→

2. 2Finding the cause

   Not stated

   ↓→

3. 3Correction

   Not stated

Manufacturer communication2004–2006 GMC YUKON DENALI ・ 2023-11-22

Vibration Analysis Worksheet Service Bulletin

1. 1Fault

   • Vibration or shudder
   ↓→

2. 2Finding the cause

   Steps to confirm (in the document’s order)

   1. When diagnosing vibration, use the worksheet together with the Vibration Analysis - Road Testing procedure in the service information.
   2. Place the sensor where the vibration is felt: on the seat track for a seat complaint, on the steering column for a steering wheel complaint.
   3. Moving the sensor to other areas, look for the same Hz reading with the greatest amplitude.
   4. If a system balance was attempted and the vibration remains, check ring gear backlash at each tooth; readings should not vary more than 0.050 mm (0.002 in).
   5. Aluminum wheel/tire runout measured on the vehicle: maximum 0.030 in (.762 mm).

   2 more points
   ↓→

3. 3Correction

   This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.