Question about 2007 Chevrolet Avalanche LTZ

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When turning left/right or backing up my truck occassionally has a popping sound. I took it to the mechanics and they can't seem to find the problem. Everything was checked out fine. What is this?

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  • Anonymous Mar 10, 2009

    i have the same issue but it got worse today. when evea i drive the poppin sound got louder and sounded like my rear axle was gonna blow off

  • Anonymous May 11, 2009

    Have the same problem. passengers side sits lower then drivers side. replaced both rear shocks . no help.

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1 Answer

#03-03-09-002B: Rear Leaf Spring Slap or Clunk Noise (Replace Spring Inserts) - (Jul 23, 2007) When turning left/right or backing - 999999995.gif Subject: Rear Leaf Spring Slap or Clunk Noise (Replace Spring Inserts) Models: 1999-2008 Chevrolet Silverado 1500/2500 Series Pickups 2000-2008 Chevrolet Suburban 2500 Series 2002-2008 Chevrolet Avalanche 2500 Series 2003-2008 Chevrolet Express 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y) 1999-2008 GMC Sierra 1500/2500 Series Pickups 2000-2008 GMC Yukon XL 2500 Series 2003-2008 GMC Savana 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y)

This bulletin is being revised to add model years and update the Parts Information. Please discard Corporate Bulletin Number 03-03-09-002A (Section 03 -- Suspension).
Condition Some customers may comment on a rear leaf spring slap or clunk noise. This noise is most apparent when the vehicle is operated over irregular road surfaces.
Correction Important: DO NOT disassemble the main pack on the leaf spring or remove the bushing from the spring.

1998759.gif
tif.gif
1998When turning left/right or backing - tif.gif
tif.gif
(1) Insert -- P/N 15247030 Verify that the rear leaf spring inserts (1) are present on the leading and trailing ends of the overload spring (second stage leaf). The insert may have broken apart from wear and fallen out. If the inserts are not present, install new ones.
Important: On some models, the vehicle may have to be raised to allow the springs to separate enough so the insert can be installed.
Parts Information Important: Technicians should refer to the Parts Catalog when ordering the insert.
Part Number
Description
15604067
Insert, Rear Spring Leaf
15247030
Insert, Rear Spring Leaf
Warranty Information For vehicles repaired under warranty, use:
Labor Operation
Description
Labor Time
E5168
Insulator and/or Insert, Rear Leaf Spring - One or All - Replace
Use Published Labor Operation Time
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 hWhen turning left/right or backing - 999999994.gifition. See your GM dealer for information on whether your vehicle may benefit from the information.
999999994.gif WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
© 2008 General Motors Corporation. All rights reserved

Posted on Jul 28, 2008

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