Two problems related to timing tensioner have been reported for the 2010 GMC Acadia. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 GMC Acadia based on all problems reported for the 2010 Acadia.
Timing chain issues. Failed tensioner. 114,00 miles.
2010 GMC Acadia. Consumer writes in regards to vehicle steering issue. The consumer stated the steering would become stiff and made turning difficult at low speeds and the engine would also race at a low steady speed without acceleration. The consumer's private mechanic, informed her, the steering gear was leaking and recommended she take the vehicle to the dealer. The dealer replaced the steering gear and front wheel drive shaft seal. The vehicle was returned to her. However, five days later, the consumer experienced the issue again, with the engine racing and the tight steering. The vehicle was taken to the dealer again, but the dealer was unable to replicate the problem. When she left the dealer, the engine raced again. She went back to the dealer, and left the vehicle. The mechanic diagnosed the problem as timing chain issue. The timing chain and tensioner were replaced, as well as the steering rack and pinion. Between may 2013 and August 2013, the consumer continued to experience several sporadic incidents of the power steering failing or significantly tightening on low speeds. Also, a noise and vibration developed in the right front side of the vehicle. The consumer was informed the motor mount was loose.