Driveline noises Archives - Transmission Digest
Accelerating in 4X4 Comes with a Bang

A while back I had a truck that came into our shop for a noise concern. The customer stated that he heard a loud clunk or repeated popping noise when he would accelerate with the truck in automatic 4×4 mode, as well as in 4×4 high and 4×4 low. He also stated that he didn’t notice the noise under light acceleration in these modes, and that the noise was not present when he was in 2WD under any type of acceleration. The truck was a 2009 K1500 Silverado with a little over 83,000 miles on it. Upon reading the description, it sure seemed like I had a transfer case problem to look into.

Check Tire Sizes on AWD/4WD Vehicles

We have all had our ‘feel good’ moments about maximizing our customer relationships by going above and beyond when we diagnose a customer vehicle with the goal of saving them money during their visit to our shop. Minimizing their expense, getting them back on the road in a timely manner and providing a pleasant service experience influence them to sing our praises to friends and thus increase our sales revenues from “word-of-mouth” advertising. Sometimes cost-cutting measures can end up costing more in the end.