One problem related to diesel engine has been reported for the 2008 GMC Sierra 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 GMC Sierra 3500 based on all problems reported for the 2008 Sierra 3500.
While driving in a one lane construction zone with no place to pull over, the vehicle lost power and would not go over 10 mph, requiring it to be towed to the nearest dealership. This durmax diesel engine had only 84,000 miles and had excellent service maintance. Cost to repair is 3860. 00.