2019 Subaru Ascent: engine knocking or ticking

Filed Feb 12, 2026 · Engine · 120,000 miles · NC

The contact owns a 2019 Subaru Ascent. The contact stated that while the engine was idling, exhaust fumes entered the cabin of the vehicle. Additionally, immediately after starting the vehicle, there was a loud ticking sound coming from the exhaust system. The vehicle was inspected by the local dealer, and it was determined that the exhaust manifold lines were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 120,000.

Filed Aug 15, 2024 · Suspension · IL

There is a knocking or clunking noise at low speeds during and after turning in the front driver's side of the vehicle. Car has 17,500 miles on it. Assembled inspection suggests that tie rod (inner and outer), ball joint, stabilizer links are all intact and functioning properly. No loose components or fasteners. All bushings appear firm and intact. There is an apparent [XXX] ), though seemingly unreported issue with the front-end suspension system that dealerships and service techs can't seem to diagnose. At best, noises go away for a period of time then return. If it's an issue with a wear component then it may be that the OEM parts are deficient for use on this vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 21, 2021 · Engine, Transmission · CA

On Friday, June 28th, we were driving the Ascent, towing our 4100 lb. camper from Tehachapi, CA, headed north toward Las Vegas. When we stopped for gas in Tehachapi, we checked all fluids including the oil. Then at about 86 miles outside of Las Vegas coming up a steep grade in hot conditions, we hear a noise that sounded like it could be valve flutter. We drove for another minute (there was no shoulder), and noted that no warning lights were on. Then we heard a louder knocking sound and saw the oil temp indicator start moving quickly to hot, and immediately pulled off onto the shoulder. After our tow to the Las Vegas Subaru dealer, it became apparent that the battery was also dead (this was the second battery replaced under warranty, and we have had to jump both batteries at least monthly over the last 2 years). Last Monday, June 14, Subaru notified us by phone on a recorded line that the investigation had concluded. They determined towing excessive weight to be the cause of the engine failure (thrown rod). We verified the make and model and registration of our camper with Subaru, which at a dry weight of 4134 pounds, is 100 lbs. less than the Airstream used in Subaru's promotional materials. We disclosed to Subaru that the camper has few miles on it and we tow with empty tanks and less than 100 pounds of cargo (2 adults and one toddler). We also told them that on our two prior trips towing, the transmission has revved frequently and it sounds like it can't find the right gear. Subaru has not provided us a copy of either inspection report, and we have been without the vehicle for nearly a month. We are asking Subaru to repair the engine under warranty (39k miles). This sudden failure put our family's safety at risk. We were forced to stop the car in the middle of a high-speed highway without safely moving to an exit- we waited in excessive heat, barely off the road in deep sand without a shoulder for an hour- we were almost hit by a semi truck as we braked.

Filed Jun 21, 2021 · Engine · CA

Driving from Tehachapi, CA toward Las Vegas towing our camper at about 45-50 mph, we started hearing a knocking that sounded like valve flutter. We drove for about 1 minute looking for a safe place to pull over, but then the knocking grew louder and the oil temp started to rise, so we immediately braked and pulled into the sand (no shoulder). There were no warning lights at any point until we actually pulled over (oil light). After the tow to Subaru Las Vegas, we noted that the battery was dead. On 6-14, Subaru of America told us on a recorded line that the two investigations had concluded and the cause was towing excessive weight. We shared our camper registration and specs with them, showing a dry weight of 4130 pounds, 100 less than the airstream used in Subaru's marketing materials (we tow with empty tanks and less than 100 lbs. of cargo. We also indicated to Subaru of Las Vegas and SOA that on our few previous trips with the camper, we noticed the Ascent revving hard on slight inclines and that it sounded like it struggled to find a gear towing. SOA has not shared a copy of either report. We are asking SOF to repair under the warranty (car has 39K miles). We will asked for the defective engine whenever we are able to pick up the vehicle. We spent over $1000 between towing, flights home from Vegas, renting a substitute vehicle, etc.. Most importantly, this sudden catastrophic failure could have killed us-the failure was so swift (the time from hearing the noise to being stationary was less than a minute and a half) and without warning that we didn't have time to react well and had to pull off into deep sand with no shoulder- a semi truck almost rear-ended us as we pulled over. Then we had to wait in the Mojave heat, arm's length away from traffic whizzing by with my toddler and puppy while the tow truck arrived. The Ascent is the vehicle we purchased to be able to evacuate our family from our wildfire-prone home, so every day we are without it poses risk.

Filed Jan 13, 2021 · Transmission · 6,991 miles · OR

Tl* the contact owns a 2019 subaru ascent. The contact stated that while driving at 35 MPH, the vehicle would independently shift out of the drive position. As a result, there was a loud knocking and screeching noise coming from the vehicle. The contact stated that after shifting back into the drive position, the accelerator pedal would apply on its own causing the contact to depress the brake pedal in order to control the speed of the vehicle. The contact managed to make it to their destination safely. The vehicle was taken to a local dealer who diagnosed that a software update was needed. The vehicle was repaired however the failure persisted. The manufacturer was not notified of the failure. The failure mileage was 6991.

Filed Jul 14, 2019 · 350 miles · WA

We are hearing a thumping or knocking noise in the front right wheel well area. We notice this noise when the car is in motion on a rough road while driving, turning, or braking. The dealership we purchased our car from checked all running gear parts under the car, and steering components, to see if there were any visible problems. After a test drive by mechanic and another service department employee, they could hear the noise, but we're unable to find its source. We are wondering if any other owners of a 2019 ascent have experienced a similar problem?