One problem related to engine has been reported for the 2006 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Chevrolet Silverado 1500 based on all problems reported for the 2006 Silverado 1500.
My 1500hd super crew cab has had a harmonic rumble since the second week of ownership. It varies some with speed and load but can be felt through the floor into your feet and be heard easily at all times. It gets progressively louder until it is serviced. The dealer has worked on the problem 4 times in 5 months and it still has the problem. It will go back for a 5th visit this week.