Some GMC Yukon owners may notice that their SUV produces a clicking or squeaking noise from around the front end while driving. Now, a possible cause for this issue has been identified, and with it, a fix to be performed by a GM technician.
According to a recent report from GM TechLink, the clicking or squeaking noise may be present in GMC Yukon SUVs produced between the 2021 and 2022 model years. Affected models are equipped with four-wheel drive, and include a front axle tagged with RPO code SU4. The clicking or squeaking noise may be produced when the vehicle is driven in two-wheel drive, but will go away when switched to four-wheel drive.
The clicking or squeaking noise may be coming from the left-side front axle output shaft. Critically, GM TechLink states that this specific noise does not affect the operation or durability of the vehicle.
To address this specific issue for the GMC Yukon, GM TechLink recommends that a GM technician first test drive the vehicle in order to confirm that the SUV is indeed emitting the clicking or squeaking noise. The noise may be easiest to duplicate in warmer ambient temperatures after the vehicle has been driven for roughly 30 miles.
Once the sound has been confirmed and isolated to the front-left axle seal area, the GM technician will next replace the left-side front axle output shaft, or front-wheel drive shaft. A new part number is available for this, which will include a slinger and retaining ring, both of which are single-use parts. The GM technician will need to refer to Front Wheel Drive Shaft Replacement – Left Side or Front Wheel Drive Shaft Replacement – Left Side (SU4) in the relevant Service Information literature.