One problem related to engine noise has been reported for the 2013 Subaru Outback. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Subaru Outback based on all problems reported for the 2013 Outback.
Subaru Outback self-accelerated (unintended acceleration) on March 22, 2018 as I was attempted to park the car in a parking lot. Due to the self-acceleration the car hopped over the curb in the parking lot and ran over a bush. My foot was no where near the accelerator and even when applying the brake, I had to press extremely hard on the brake to stop the vehicle. While it self-accelerated the engine made a loud revving sound. On March 23, 2018 the car self-accelerated again with my husband driving on the open road. After this incident we had the car towed to our car dealership. Subaru has had the car since March 23 and denies any problem with the accelerator or car.