Timing chain failure and premature wear
ENGINE
26 NHTSA complaints · 2015-02 → 2025-07
“There was a recall for gmc premature timing chain engine recall. This recall was complete in 2011 but it did not fix the problem. The timing chain keeps breaking off the cam shaft sensor and needs to be replaced”
“TOOK VEHICLE TO LOCAL GMC DEALER FOR CHECK ENGINE LIGHT, AT 159,879 MILES. DEALER SAYS TIMING CHAIN IS MAKING NOISE AND GOING BAD. ESTIMATED REPAIR COST, $3,600. NOISE IS HEARD WHEN ENGINE IS STARTED AND SUBSIDES A LITTLE WHEN DRIVING”
“THE 3.6L ENGINES HAVE AN ISSUE WITH TIMING CHAINS GOING BAD, POSSIBLY BREAKING”