2015 Subaru Forester: misfire or rough idle

Filed Oct 15, 2020 · Transmission · 120,000 miles · CA

Rough idling, uneven acceleration when stepped on gas, the car would accelerate, slow down, and accelerate again. Uneven deceleration when letting go of gas, the car would slow down, speed up, and slow down again. Seem like a software problem with computer.

Filed May 19, 2020 · Acceleration, Engine · 60,000 miles · MI

This is an intermittent problem. The vehicle surges sometimes and misfires when it cold starts. I took the car to the retailer, they did not found any issue. Only the differential oil was changed. They told me to return if the problem occurs again. Again it came back and intermittent. I am sure retailer will not be able to find the problem again. It is sudden loss of powers for couple seconds and it a hazard on the road. Hope there are recalls on this issue.

Filed Oct 28, 2019 · Engine · 54,000 miles · OR

While driving normal speeds, the car's check engine light came on. I scanned the code, the car is getting a p0016 code, and the car has a rough idle. The wilsonville subaru dealer has said that a new ECM and cam sprocket needs to be replaced in order for this issue to be fixed. The issue seems to be a factory defect with the cam sprocket, "coming apart" and causing the engine to lose timing. This seems to be a common issue people are having online with this engine as well. Anad, apparently the issue will come back if the ECM isn't replaced as the ECM "hard codes" the error in the computer and it wont go away unless replaced. Making the issue unresolvable outside of drivetrain warranty without subaru's assistance. Subaru is refusing to do the repairs.

Filed Sep 25, 2018 · Engine · 64,705 miles · CA

This incident happened 2 weeks and 600 miles of driving after I had taken the car to the dealer to have ECM flash updates installed to address surging and loss of power during light acceleration, especially during high ambient temperatures. We were driving at about 65 MPH on the freeway at night, we heard and felt a very loud 'knock' from the engine and experienced sudden and complete loss of power. When I pressed the accelerator the vehicle would rev and give a little bit of power and then lose all power again. Essentially we were coasting. Fortunately we were near a freeway exit and were able to stop at a shoulder on that exit. We tried turning the vehicle off, waiting and turning it back on. Although the engine turned over, it had a very rough idle and shut off after about 10 seconds. If we turned it on and put the car in gear and tried to drive forward it immediately turned off. I had it towed back to the dealer. They said the air intake hose disconnected from the intercooler. They reconnected the hose, cleared fault codes and it is running normally now. I am skeptical that this is actually the problem, I have a feeling that there is something wrong with these cars from the manufacturer and that subaru is attempting to cover things up to avoid more expensive recalls. This was a catastrophic failure that put our lives in danger and I no longer feel safe driving the car.

Filed Aug 19, 2016 · Engine · 5,000 miles · CA

Tl* the contact owns a 2015 subaru forester. The contact stated that while driving at various speeds, the vehicle misfired and hesitated. In addition, all the warning lights illuminated. After consulting with a mechanic it was determined that the failure was caused by a faulty emissions control system to the turbo charged engines. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 5,000.