Colorado 2WD L5-3.5L VIN 6 (2005)
Alignment: Customer Interest
Steering/Suspension - Front Tires Wear Prematurely
Bulletin No.: 04-03-07-004B
Date: July 22, 2005
TECHNICAL
Subject:
Premature Front Tire Wear (Set Front Z Height, Toe and Rotate or Replace Front Tires)
Models:
2004-2005 Chevrolet Colorado
2004-2005 GMC Canyon
Built Prior to November 18, 2004
Supercede:
This bulletin is being revised to add a build date to the Models. Please discard Corporate Bulletin Number 04-03-07-004A (Section 03 - Suspension).
Condition
Some customers may comment on excessive front tire wear on the inside edge of the tire.
Cause
On four wheel drive (4WD) models, an incorrect Z height trim setting, resulting in an excessive front sum toe-out of specification, may be the cause.
On two wheel drive (2WD) models, an incorrect front sum toe setting may be the cause.
Correction
Follow the procedure below for diagnosis and repair of this condition.
Important:
Prior to performing any tire repairs, permanently record the current tire inflation on the repair order.
1.
Permanently record the tire pressure settings on the repair order.
2.
Inspect the inside edge of the front tires for excessive wear.
^
If the inner front edge of the tires are worn to the wear indicators, replace the front tires and continue with the next step.
-
For repair information, refer to Tire Mounting and Dismounting.
-
For tire warranty information in the U.S., refer to Warranty Administration - GM New Vehicle Tire Warranty Program Bulletin Number
00-03-10-003I, dated June 2005.
-
For tire warranty information in Canada, refer to Warranty Administration - GM of Canada New Vehicle Limited Warranty Tire Program
Bulletin Number 01-03-10-003B, dated April 2004.
^
If the inner front edge of the tires are not worn to the wear indicators, rotate the tires and continue with the next step.
Important:
Prior to performing any additional repairs, permanently record the following information on the repair order.
^
Z Height
^
Alignment Measurements
^
Fuel Level
3.
Set the inflation per the vehicle tire placard located on the driver's door.
