Some Chevy Tahoe and Chevy Suburban owners may notice that their SUV makes a clicking noise while driving. The noise may be coming from the vehicle’s front axle while operating in four-wheel drive. Now, a possible cause for this issue has been identified, as well as a fix for the issue.
Per a recent report from GM TechLink, the clicking issue has been identified in certain units of the Chevy Tahoe and Chevy Suburban between the 2021 and 2022 model years. Affected units are equipped with four-wheel drive and include a front axle tagged with RPO code SU4.
The clicking sound will be present in the left-side front axle output shaft when operating the vehicle in two-wheel drive mode. However, the sound may go away when the vehicle is operated in four-wheel drive. Critically, the GM TechLink report indicates that the issue does not affect the durability or operation of the vehicle.
In order to address this issue, GM technicians are instructed to first test drive the vehicle to confirm that there is indeed a clicking (or squeaking) noise produced while operating the vehicle. The sound may be easiest to reproduce in warmer ambient temperatures after the vehicle has been driven for approximately 30 miles.
Once the GM tech confirms that the sound is occurring from around the front-left axle seal area, they will next replace the left-side front axle output shaft (or front-wheel drive shaft). Notably, a new part number is available that uses a slinger and retaining ring for installation, both of which are single-use parts. In order to replace the left front-wheel drive shaft, GM technicians are instructed to refer to Front Wheel Drive Shaft Seat Replacement – Left Side or Front Wheel Drive Shaft Replacement – Left Side (SUR) in the Service Information literature.