One problem related to engine clicking and tapping noises has been reported for the 2008 Saturn Aura. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Saturn Aura based on all problems reported for the 2008 Aura.
While passing another car to merge onto an off ramp, I accelerated and then let up on the gas pedal as I exited. Immediately the engine started making a loud ticking noise which continued as I drove home on surfaces streets. Upon starting the car the next day I heard a light knocking noise. I drove to the chevy dealer and the knock got louder. They advised tearing the engine down for $1,000 to determine the issue. They said there was metal in the oil. I believe my issues are the same as many 3. 6ltr vvt engine owners, the timing chains and supports for them. The noise is persistent and varies in tone. I had barely 50,000 miles on it and have kept the oil changes regular, I even had mobile 1 synthetic put in its last oil change. I am extremely frustrated as this was my first american made new car purchase and there were only eight months after it was paid off when this failure occured. I am a usaf vet and retired from a city job of 30 years. After spending $32,000 on this car, I expected so much more.