Canada - Suspension - Rear Suspension Thump Noise

Bulletin
TSB2488R

Issue Date
2006-07-04

Market
Canada

Title
REAR SUSPENSION THUMP NOISE

Component
REAR SUSPENSION

Models
'05 -- '06 Avalon

TSB REVISION NOTICE:
- August 22, 2006: The previous and current part numbers have been updated in the Parts Information table.
Previous versions of this TSB should be discarded.

INTRODUCTION:






Some customers may complain of a thump or clunk noise coming from the rear suspension when traveling over bumps or rough road surfaces at steady speeds. Both the left and right rear upper strut supports have been changed to improve this noise condition.

APPLICABLE VEHICLES:
- 2005 - 2006 model year Avalon vehicles produced BEFORE the Production Change Effective VINs shown below.






PRODUCTION CHANGE INFORMATION:






WARRANTY INFORMATION:






PARTS INFORMATION:

REPAIR PROCEDURE:






1. Conduct a road test to verify the noise condition.
2. Remove and replace both rear upper supports and both rear shock absorbers by following the procedures in ETAS:
- 2005 model year Avalon Repair Manual: Rear Suspension: Rear Shock Absorber With Coil Spring.
- 2006 model year Avalon Repair Manual: Suspension: Rear Shock Absorber With Coil Spring.

3. Correct and adjust the rear wheel alignment after replacing the rear upper supports.
Follow the procedure on ETAS:
- 2005 model year Avalon Repair Manual: Rear Suspension: Rear Wheel Alignment.
- 2006 model year Avalon Repair Manual: Suspension: Rear Wheel Alignment.

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.