# Fall in rpm

**URL:** <https://community.cartalk.com/t/fall-in-rpm/61896>\
**Category:** Maintenance/Repairs\
**Tags:** sl, saturn\
**Created:** [February 26, 2011, 5:33pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896 "2011-02-26T17:33:50Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![wilsontree3](https://avatars.discourse-cdn.com/v4/letter/w/d9b06d/32.png) [@wilsontree3](https://community.cartalk.com/u/wilsontree3)\
**Post date:** [February 26, 2011, 5:33pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896/1 "2011-02-26T17:33:50Z")

</div>

Coming to a stop the car acts like it is going to quit,stall .it gets quieter if that makes sense. it is a saturn sl2 with 148,000, recently last year has had brakes-just last week, battery last month,fuel filter, water pump last year. Friend said it could be spark plugs which were done about 50,000 miles ago

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [February 26, 2011, 5:43pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896/2 "2011-02-26T17:43:42Z")

</div>

It could be a lazy idle air control (IAC) valve.

It could be a sticking open EGR valve.

It could be - if its an automatic transmission - a sluggish unlock of the torque converter clutch.

It could be … any number of other things. The above are my first suspects.

---

<div class="post-metadata">

**Author:** ![wilsontree3](https://avatars.discourse-cdn.com/v4/letter/w/d9b06d/32.png) [@wilsontree3](https://community.cartalk.com/u/wilsontree3)\
**Post date:** [February 26, 2011, 6:06pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896/3 "2011-02-26T18:06:25Z")

</div>

is adjusting/fixing iac an easy thing to do?? it is an automatic transmission

---

<div class="post-metadata">

**Author:** ![cigroller](https://avatars.discourse-cdn.com/v4/letter/c/c68b51/32.png) [@cigroller](https://community.cartalk.com/u/cigroller)\
**Post date:** [February 26, 2011, 6:27pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896/4 "2011-02-26T18:27:58Z")

</div>

The IAC normally sits right on the throttle body and is held on with all of 2 or 3 small bolts. You start by cleaning it up really well with something like throttle body cleanr. You may as well clean the throttle body while you’re at it.

---

<div class="post-metadata">

**Author:** ![wilsontree3](https://avatars.discourse-cdn.com/v4/letter/w/d9b06d/32.png) [@wilsontree3](https://community.cartalk.com/u/wilsontree3)\
**Post date:** [February 26, 2011, 6:34pm UTC](https://community.cartalk.com/t/fall-in-rpm/61896/5 "2011-02-26T18:34:49Z")

</div>

ok will try that, thanks