Front Suspension Rattle at Slow Speeds

A rattle or creak noise at slow speeds over bumps or broken pavement on some 2013-2016 Acadia; 2013-2017 Enclave, Traverse; and 2017 Acadia Limited models may be originating from the front lower control arm front bushing. (Fig. 21)

 

Fig. 21

 

To determine the source of the rattle, follow the Noise Diagnosis – Front Suspension procedures in the appropriate Service Information.

If the rattle sound cannot be determined after a thorough visual inspection of all front suspension components and the use of the J39570 Chassis Ear tool, it may be necessary to replace the front lower control arm front bushing. Only replace the front lower control arm front bushing on the side that is making the rattle sound.

When replacing the front bushing, be sure to follow all steps in the service procedure as written in the Service Information.

TIP: The front lower control arm front bushing is not serviced separately from the mounting bracket. Do not remove the bushing from the bracket.

The torque sequence of the bushing is critical to resolving the rattle condition. Ensure that the front lower control arm front nut (Fig. 22, #1) is fully tightened to properly seat the front lower control arm front bushing before tightening the front lower control arm front bushing nuts. (Fig. 22, #2)

 

Fig. 22

 

– Thanks to Jim Miller