# Subaru Accelerating problem **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** subaru, forester\ **Created:** [August 13, 2010, 5:45pm UTC](https://community.cartalk.com/t/subaru-accelerating-problem/53470 "2010-08-13T17:45:12Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![astimson](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/astimson/32/1320_2.png) [@astimson](https://community.cartalk.com/u/astimson)\ **Post date:** [August 13, 2010, 5:45pm UTC](https://community.cartalk.com/t/subaru-accelerating-problem/53470/1 "2010-08-13T17:45:12Z")
I have a 2003 Subaru Forester 2.5 xl manual. Recently, past 3 or 4 months, my car has been spiradically acting up. I’ve noticed when it’s hot and I’m in stop and go rush hour traffic the car’s rpm accelorate own their own. I will be switching from the gas to the clutch and the rpms will go from about 1500 to 3000-3500 with the clutch completely engaged and the brake on. When I put it in gear and step on the gas the RPMs will go down and then accelorate or than normal. Once I pick up speed and get out of stop and go traffic, the car corrects itself. This has happened probably 8 or more times in the past few months and I’ve taken it to a subaru specialist but they can’t duplicate the problem and suggested that I had a bad alternator which I had checked and it’s fine. Do you have any suggestions? I would really like to avoid having an accident. - Adrienne Stimson [stimsona@gmail.com](mailto:stimsona@gmail.com) or 720-219-2251 ---
**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\ **Post date:** [August 13, 2010, 5:52pm UTC](https://community.cartalk.com/t/subaru-accelerating-problem/53470/2 "2010-08-13T17:52:38Z")
Did the Subaru specialist at least inspect the throttle linkage and clean the throttle body? ---
**Author:** ![astimson](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/astimson/32/1320_2.png) [@astimson](https://community.cartalk.com/u/astimson)\ **Post date:** [August 13, 2010, 6:29pm UTC](https://community.cartalk.com/t/subaru-accelerating-problem/53470/3 "2010-08-13T18:29:22Z")
They did not even mention the throttle. But my boy friend has mentioned it as something that could be checked. ---
**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\ **Post date:** [August 14, 2010, 11:39am UTC](https://community.cartalk.com/t/subaru-accelerating-problem/53470/4 "2010-08-14T11:39:20Z")
I would suspect the throttle position sensor first. It may have some dirty contacts. The MAF sensor is another thing to check if the TPS sensor isn’t the trouble. I suppose there could be a faulty fuel injector also but I rather doubt that or perhaps the fuel pressure regulator is acting up.