06-03-09-004H
Service Bulletin Details
Public Details for: 06-03-09-004H
This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition of a squeak noise originating from the rear of the vehicle.
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File in Section: Bulletin No.: Service Bulletin Date: 03 - Suspension 06-03-09-004H July, 2016 TECHNICAL Subject: Squeak Noise from Rear of Vehicle (Lubricate Rear Leaf Springs) Models: 1999-2007 Chevrolet Silverado (Classic) 2007-2012 Chevrolet Colorado 2007-2016 Chevrolet Silverado 2015-2016 Chevrolet Colorado 1999-2007 GMC Sierra (Classic) 2007-2012 GMC Canyon 2007-2016 GMC Sierra 2015-2016 GMC Canyon 2007-2010 HUMMER H3, H3T Attention: This Bulletin also applies to any of the above models that may be Export from North America vehicles. This Bulletin has been revised to add the 2016 Model Year. Please discard Corporate Bulletin Number 06-03-09-004G. Condition Correction Some customers may comment about a squeak noise coming from the rear of the vehicle. During normal operation, certain vehicles may exhibit a squeaking noise that may be traced to the rear leaf springs. While this noise is an operating characteristic of leaf springs, the frequency and severity of this noise will be affected by the roads that the vehicle is driven on. To correct this condition, lubricate the rear leaf springs using the following procedure. Important: It has been found that the application of grease to the rear leaf springs does a better job of preventing the noise from reoccurring than replacement of the spring. 1. Raise the vehicle on a frame lift-type hoist. 2. Inspect the springs for damage. If none is found, proceed to the next step. 3. Pressure wash the rear leaf springs to remove as much dirt and grit as possible. 4. Dry the springs with compressed air. Cause This condition may be due to debris getting between the leaf springs. Copyright 2016 General Motors LLC. All Rights Reserved. Page 2 July, 2016 Bulletin No.: 06-03-09-004H 1826776 Note: Ensure any tool used to gently pry the tip inserts or spring leaves is protected to prevent damage to the spring leaves. 5. Apply a liberal amount of grease, P/N 12345996 (in Canada, use P/N 10953501), both underneath and on top of the front and rear tip inserts for the #2 and #3 leaves, as indicated below. A screwdriver can be used to gently pry up the tip insert; however, a rag around the screwdriver must be used to prevent damage to the spring. Use a flat-bladed tool, such as a gasket scraper to properly distribute the grease. 6. Lower the vehicle to the ground and test drive to verify the repair. Please inform the customer that this will offer relief, but is not a lifetime repair. Periodic cleanings and grease re-application may be necessary throughout the life of the vehicle. For 1500 Series (½ ton) models only: On vehicles built prior to October 2004, if the above procedure does not correct this noise, it could be caused by an incorrectly dimensioned splay clip (the band holding the ends of the leafs together) that interferes with the leaf springs. A 5 mm (0.197 in) wider splay clip was introduced in early 2005 model year to provide additional clearance. To correct this concern, replace the rear leaf spring assembly. There was no change to the part number. Parts Information Part Number Description Qty 12345996 (in Canada, use 10953501) Lubricant 1 Warranty Information For vehicles repaired under warranty, use: Labor Operation Description Labor Time Lubricate Rear Leaf Springs-LD 0.5 hr Lubricate Rear Leaf Springs-HD 0.9 hr 8080008* *This is a unique Labor Operation for Bulletin use only. It will not be published in the Labor Time Guide. 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