17NA143

File in Section:
Bulletin No.:
Service Bulletin
Date:
17-NA-143
February, 2018
TECHNICAL
Subject:
Clicking Noise from Front On Accel and Decel at Low Speeds
Brand:
Model:
Buick
Chevrolet
Cadillac
GMC
Model Year:
VIN:
from
to
from
Enclave
2018
2018
Traverse
2018
2018
2017
2018
Engine:
Transmission:
to
XT5
XTS
Acadia
(VIN N)
Involved Region or Country
North America and N.A. Export Regions
Condition
Some customers may comment on a clicking noise from front wheels on Accel and Decel
at low speeds.
Cause
This condition may be caused by a loss of torque on the drive axle nut.
Correction
If the above condition has been confirmed, the axle nut and anti-click washer must be
replaced.
Service Procedure
1. Remove the front tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation in SI.
Caution: DO NOT use air tools to remove the wheel
drive shaft nut. Damage to the wheel drive shaft
threads could occur. Use hand tools only.
2. Remove the wheel drive shaft nut (1) and
DISCARD the nut.
3. Separate the steering linkage outer tie rod from the
steering knuckle.
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Copyright 2018 General Motors LLC. All Rights Reserved.
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February, 2018
4. Remove the lower ball joint nut (1).
5. Separate the lower control arm from the steering
knuckle.
Bulletin No.: 17-NA-143
9. Position the new washer onto the wheel drive
shaft.
10. Using care, install the drive shaft into the hub.
11. Install the steering knuckle onto the lower
control arm.
• Tighten the fastener to specifications. Refer to
Fastener Specifications in SI.
12. Install the outer tie rod to the steering knuckle.
• Tighten the fastener to specifications. Refer to
Fastener Specifications in SI.
Note: DO NOT use air tools to tighten the wheel drive
shaft nut. Tighten the NEW wheel drive shaft nut slowly
to draw the wheel drive shaft into the hub assembly
prior to tightening to specifications.
13. Install new axle nut to drive shaft.
14. With the aid of an assistant holding the brake pedal
down, tighten the NEW wheel drive shaft nut.
14.1. First Pass: 150 Y (111 lb ft)
14.2. Second Pass: Loosen 45 degrees
14.3. Final Pass: 270 Y (199 lb ft)
15. Install the front tire and wheel assembly. Refer to
Tire and Wheel Removal and Installation in SI.
4296860
6. Attach the J-45859 remover (1) to the wheel hub
using the wheel lug nuts (2).
7. Using the J-45859 remover, separate the wheel
drive shaft from the wheel bearing/hub.
Parts Information
Description
Part
Number
Washer, FRT WHL
DRV SHF
NUT, FRT WHL DRV SHF
Refer
to EPC
Qty
2
2
Warranty Information
For vehicles repaired under the Bumper-to-Bumper
coverage (Canada Base Warranty coverage), use the
following labor operation. Reference the Applicable
Warranties section of Investigate Vehicle History (IVH)
for coverage information.
Labor
Operation
Description
Labor Time
3080208*
Install Front Axle Shaft Nut
and Washer
1.0 hr
*This is a unique Labor Operation for Bulletin use only.
4174916
8. Remove the washer (1) from the wheel drive shaft
(2) and DISCARD the washer.
Bulletin No.: 17-NA-143
February, 2018
Version
4
Modified
May 30, 2017 - Added the 2018 Model Year and XTS model.
Feb. 08, 2018 - Add Enclave and Traverse models.
Feb. 21, 2018 - Update Parts section.
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.
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