Some owners of 2010-2014 GMC Terrain vehicles may comment about a popping, creaking, rattle, squawk or clunk-type noise from the front of the vehicle. This noise will most likely be heard during small to medium suspension travel, traveling straight and/or during turns.
The cause of this condition may be due to the inside diameter of the front strut jounce bumper rubbing against the piston rod of the strut, creating a slip-stick condition.
Raise and support the vehicle. Pull the dust shield/jounce bumper assembly out of the strut top mount cup. Slide the dust shield/jounce bumper assembly down to expose the top portion of the strut shaft. Apply dielectric silicone grease GM P/N 12345579 (in Canada, 10953481) around the circumference of the exposed strut shaft. Unseat the bottom of the dust shield from the strut.
Slide the dust shield up to expose the bottom portion of the strut shaft. Apply grease around the circumference of the exposed strut shaft. Slide the dust shield down and reattach the bottom to the strut. Push the top of the dust shield up into the top mount cup as far as possible by hand.
The assembly will fully seat once the vehicle is on the ground and the suspension is allowed to compress.
