# Piston slap? **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [October 26, 2008, 11:17pm UTC](https://community.cartalk.com/t/piston-slap/21279 "2008-10-26T23:17:21Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Jen\_Faigel](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@Jen\_Faigel](https://community.cartalk.com/u/Jen_Faigel)\ **Post date:** [October 26, 2008, 11:17pm UTC](https://community.cartalk.com/t/piston-slap/21279/1 "2008-10-26T23:17:21Z")
My 2002 subaru forester is making a loud noise that the dealer says is “piston slap.” The dealer says that it will cost $3,000 plus to fix it. The dealer also said that, as long as I don’t mind the noise,the car could keep running for years. Does this make sense? Should I really just ignore it? ---
**Author:** ![andrew\_j](https://avatars.discourse-cdn.com/v4/letter/a/91b2a8/32.png) [@andrew\_j](https://community.cartalk.com/u/andrew_j)\ **Post date:** [October 26, 2008, 11:55pm UTC](https://community.cartalk.com/t/piston-slap/21279/2 "2008-10-26T23:55:11Z")
Piston slap was around in the non turbo 2.5L for a couple years. I don’t believe it has any longevity issues with their engines, just annoying if ID’ed correctly. The dealer should be well experienced in the symptom(s). ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [October 27, 2008, 12:15am UTC](https://community.cartalk.com/t/piston-slap/21279/3 "2008-10-27T00:15:05Z")
If the loud noise goes away after the engine runs for a short time, then it could be piston slap. If the noise continues after the engine runs for a short period of time, then there may be a bigger issue. Tester ---
**Author:** ![Jen\_Faigel](https://avatars.discourse-cdn.com/v4/letter/j/ccd318/32.png) [@Jen\_Faigel](https://community.cartalk.com/u/Jen_Faigel)\ **Post date:** [November 1, 2008, 1:52pm UTC](https://community.cartalk.com/t/piston-slap/21279/4 "2008-11-01T13:52:04Z")
the noise is definitely worse when just starting/cold weather–