NHTSA ID Number: 10127185
Manufacturer Communication Number: PIT5139C
Summary
This Preliminary Information communication provides information to the technician about vehicles that the rear end has a sway feeling in the rear while switching lanes at highway speeds. Technician should follow all published Service Information diagnostics for the concern. Also inspect the rear suspension components for signs of damage or looseness and inspect the rear toe adjustment bar bushings with the suspension loaded.
31 Affected Products
Vehicles
SEOCONTENT-START
#PIT5139C: Diagnosing Suspension And Rear End Sway – (Sep 8, 2015)
| Subject: | Diagnosing Suspension And Rear End Sway |
| Models: | 2008-2016 Buick Enclave |
| 2009-2016 Chevrolet Traverse | |
| 2007-2016 GMC Acadia | |
| 2007-2010 Saturn Outlook |
This PI was superseded to update model years. Please discard PIT5139B.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern
Some owners may comment while switching lanes at highway speeds there is a slight rear end sway feel. They could say it feels like driving in a cross-wind.
Recommendation/Instructions
Follow Service Information document for Symptoms – Suspension General Diagnosis.
Follow Service Information document for Body Leans or Sways in Corners.
Inspect the rear suspension components for signs of damage or looseness.
Inspect the rear toe adjustment bar bushings with the suspension loaded (see picture below).
Use a pry bar and apply forward and rearward pressure to the bushings at the spindle end. Also test at the frame end.
Warranty Information
The correction for this concern may be one of several repairs described above. For vehicles repaired under warranty, please use the appropriate warranty labor operation based on the actual cause and repair.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
SEOCONTENT-END
Bulletin No.: PIT5139C
Date: Sep-2015
To View or Download this Document Click Here
Bulletin No.: PIT5139C
Date: September, 2015
To View or Download this Document Click Here
Bulletin No.: PIT5139B
Date: Feb-2014
To View or Download this Document Click Here
Bulletin No.: PIT5139A
Date: Feb-2013
To View or Download this Document Click Here
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