#11-08-61-001A: Underbody Squeak/Creak/CrunchNoise During Slow Speed Maneuvers (Replace Body Mount Cushions) - (Apr14, 2011)
Subject:
Underbody Squeak/Creak/CrunchNoise During Slow Speed Maneuvers (Replace Body Mount Cushions)
Models:
2004-2011 ChevroletColorado
2004-2011 GMCCanyon
2006-2010 HUMMERH3
This bulletin is being revised to updatethe Parts Information. Please discard Corporate Bulletin Number 11-08-61-001(Section 08 – Body and Accessories).ConditionSome customers may comment on a squeak/creak/crunchtype noise coming from under the vehicle while driving. This conditionis most noticeable when driving at low speeds over uneven surfaces suchas driveway entrances or in parking structures.
Cause This condition may be caused by frictionbetween the upper and lower body mount cushion assemblies.
Correction A revised body mount cushion assembly isnow available to correct this condition. The revised part has an anti-frictioncoating that will eliminate the noise. Use the following steps to diagnosethe condition and install the required service part(s). To diagnose this concern, use chassis earsto determine if the noise is coming from the body mount cushion. If thesource of the noise is determined to be caused by the body mount cushion,replace all of the upper body mount cushion assemblies on the vehicle withthe revised parts. Use the following steps to install the revisedcushion assemblies.
Important: On HUMMERH3 models, it is necessary to disconnect the fuel fill pipe from the fueltank to prevent damage when lifting the body. Note: On vehicles equipped with a front skid plate, it may be necessaryto remove the skid plate from the vehicle to access the front mounts.
1.
Disconnect thefront parking brake cable from the parking brake equalizer. Refer to ParkingBrake Lever Pedal Assembly Replacement in SI.
Warning When you remove the body cushions,do NOT separate the frame from the body more than is necessary (over 40 mm(1.57 in). Possible personal injury and damage to multiple parts mayresult if you do not follow the guides outlined below: • Intermediatesteering shaft--Do not allow the shaft to extend more than 25 mm (1 in).• Fuel tank filler hose--Do not stretch the hose excessively. • Tail/Turnsignal lamp wiring/rear lamps junction block--Leave slack in the wires.• Park brake cable--Leave slack in the cable. • Body ground straps--Leaveslack in the wire.
2.
Replace all ofthe upper cushion assemblies on the vehicle. Refer to Drivetrain and FrontSuspension Frame Insulator Replacement in SI.
3.
Reconnect the frontparking brake cable to the parking brake equalizer. Refer to Parking BrakeLever Pedal Assembly Replacement in SI.
Parts Information
New Part Number
Existing Part Number (use for location reference)
Description
20951813
15241190
CUSHION, BODY BOLT UPR LOCATION #2
20951814
15241191
CUSHION, BODY BOLT UPR LOCATION #1
22761935
15241189
CUSHION, BODY BOLT UPR FRT
Warranty InformationFor vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
E9541
Install Revised Upper Body Bolt Cushions-Regular and Extended Cab PickUp
1.8 hrs
Install Revised Upper Body Bolt Cushions-Crew Cab Pick Up and HUMMER H3SUT