Two problems related to engine clicking and tapping noises have been reported for the 2011 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 GMC Acadia based on all problems reported for the 2011 Acadia.
At 86,000 miles, the engine needed to be replaced. Despite our regular maintenance and oil changes, the vehicle began to make a loud ticking sound. We immediately pulled into the nearest auto shop. We had two mechanics (had car towed for second opinion) say that the engine needed to be replaced.
I was complaining about the performance of this vehicle to the dealer for the past three years. Now that the warranty is expired, I had to change the driveshaft, fell out while transporting passengers; transfer case, the transition from drive, the automatic shift would jerk; a passenger I had in the car told me one day I would not make it up a hill. One week later it happened. Transmission, the vehicle wouldn't move even when gas was applied; 6 coils and plugs, the bad smell of something burning was scary. I had to pull off the road because the reduce power light come on. Yesterday, 12/26/16, I went through this again!!! there is a rubbing sound in one of my wheels, don't know what that is yet. I also changed the axels and about to change the tie rods for a clunking noise while making turns on uneven surfaces. I made numerous complaints to GMC hq and the dealer here in the vi from 2013. The dealer changed parts that were irrelevant and told me it was fixed.