hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
49,216 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Subaru Outback engine problems

engine problem

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2007 Subaru Outback Owner Comments

problem #9

Aug 012015


  • 120,000 miles


The contact owns a 2007 Subaru Outback. While driving approximately 75 mph, the check engine and cruise control deactivation sensors illuminated before the speed suddenly decelerated to approximately 20 mph. The failure occurred on multiple occasions. After the vehicle was turned off and on, it operated normally. The vehicle was taken to the dealer who was unable to determine the cause of the failure. The manufacturer was not notified. The failure mileage was 120,000.

- Cleveland, TN, USA

problem #8

Jul 082016


  • 79,000 miles
This is my second complaint to be filed. This has been an ongoing problem since 2013. My 2007 Subaru Outback loses vehicle power as the accelerator stops responding. The cruise control, traction, and check engine lights all become illuminated or flashing. This is especially common upon restarting the car after a short drive, coming to a stop, or after 5-10 minutes from a cold start. Restarting the vehicle until the vehicle will not restart and then restarting once more resets the issue for approximately 24 hours. Cleaning the connector plug to the accelerator temporarily resolves the issue anywhere form 6 months to one week. Subaru has been contacted and issued a generic response mostly dealing with air bag safety concerns. This is a very hazardous default in the vehicle which is being ignored.

- Cedar Park, TX, USA

problem #7

Sep 042012


  • 100,000 miles
Problem P2138 throttle ceases to control car engine speed. In neutral it settles at ?4000 RPM. Stopping and restarting the car stops the problem, but the check engine light remains on and cruise control light flashes for 1-2 days. Cruise control is not functional while in this state. This can happen at any speed, but typically at 55-60. Happens intermittently, now 3 times in the past month. Had the throttle sensor replaced one year ago, and we had no problem for 11 months until the past month.

- St Paul, MN, USA

problem #6

Apr 032013


  • 55,600 miles


Vehicle stopped at a red light during rush hour. Tried to accelerate for right turn, however there was no acceleration when the gas pedal was depressed. Checked the displace for indicator lights and check engine light and traction control lights were on steadily while cruise control was blinking. Immediately turned off heater, seat heater, and radio, and proceeded to coast down a hill at idle. Gas pedal was unresponsive, but I was able to safely pull off the road after 0.3 miles. Restarted the car twice and the warning lights were still on and gas pedal still did not work. A third attempt to restart resulted in the engine turning over but no ignition. After several more restarts the gas pedal was responsive but indicators lights were still present. Drove to auto repair shop with normal speed control where the indicator lights promptly turned off. Sensor history indicated P2138 code for throttle position sensor.

- Cedar Park, TX, USA

problem #5

Jul 012011

Outback 4-cyl

  • Automatic transmission
  • 76,000 miles
'07 Subaru Outback 2.5I w/ automatic transmission. When transmission was cool code P0720 was set for vehicle speed sensor failure. After driving for a while error would reset as sensor presumably warmed and began working normally. I identified and confirmed the front vehicle speed sensor was the problem. A week after the initial failure, and prior to my being able to replace the sensor, the behavior of the failure changed: At highway speed (60-65mph) the car would automatically shift into first gear and feel like the brakes were slammed on. This being an obviously dangerous and scary situation, my short term solution was to cut the wire going to the sensor until I could replace it. (the sensor is hard-wired into a 3-sensor wire harness that requires access inside the transmission to be replaced). Just prior to the car automatically shifting into first gear I also heard the safety solenoid in the shifter assembly (the one that prevents the operator from putting the shifter into park while the car is moving) quickly cycling on and off, so my assumption was that a partial signal was being seen by the onboard computer and interpreted as if the vehicle was traveling at a slower speed than it really was. After cutting the speed sensor out of the circuit this aspect of the failure has not repeated itself.

- Hackettstown, NJ, USA

problem #4

Jul 302007


  • 1,000 miles
Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6). 2007 Subaru Outback wagon [xxx] purchased car new. Had what I called engine 'revving' or increased acceleration from first week of driving car. Reported problem to dealer and they went through a series of repairs with no change in performance. They sent a 'corporate' mechanic to test the car. He experienced the increased RPM's without stepping on the gas pedal but stated the car was normal. He then told me two things, they had found the same problem in another car and they had a fix for the problem for the 2008 but not 2007. 1) when foot is off gas, the car accelerates. 2) commonly occurs almost every time I press clutch and turn. Has only happened 2 times while in gear and driving. Application of the brake did slow the car 3) corrections include: Gas/air ratio sensor replaced, suggested I run 3 tanks of premium gas, replaced power steering pump, replaced throttle body and accelerator pedal, disconnected idle switch from power steering pump and suggested I leave this detached which I did not feel comfortable with, I have tried for a resolution through the dealer, the better business bureau and Subaru corporate with no results.

- Flagstaff, AZ, USA

problem #3

Dec 282007

Outback 4-cyl

  • Automatic transmission
  • 2,500 miles


Hesitation on acceleration, between 1500 and 2800 rpms.while accelerating quickly at an intersection or rolling stop.

- Syracuse, NY, USA

problem #2

Aug 172007

Outback 4-cyl

  • Automatic transmission
  • 8,841 miles
The contact owns a 2007 Subaru Outback. While driving 60 mph with the cruise control activated, the vehicle gained speed down hill and accelerated to 80 mph. The contact disengaged the cruise control by applying the brakes. The dealer found no failures and stated that the vehicle was designed in that manner. The mechanic at the dealer inspected the vehicle and stated that the cruise control components did not appear to have failed. The current mileage was 19,751 and failure mileage was 8,841. Updated 01/02/08.

- Bend, OR, USA

problem #1

Mar 152007


  • miles
2007 Subaru Outback 2.5I, 5-speed manual transmission -- when my foot is taken off the accelerator to shift the engine actually accelerates rather than decelerates. It causes the car to jump forward much quicker than the driver planned when the next gear is selected. This is a safety issue that needs to be corrected.

- Nashua, NH, USA

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