# RPM Fluctuations 2002 Corolla

**URL:** <https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118>\
**Category:** Maintenance/Repairs\
**Tags:** corolla, rpm, toyota\
**Created:** [January 18, 2011, 5:26pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118 "2011-01-18T17:26:26Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![hootie1fan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/hootie1fan/32/123_2.png) [@hootie1fan](https://community.cartalk.com/u/hootie1fan)\
**Post date:** [January 18, 2011, 5:26pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/1 "2011-01-18T17:26:26Z")

</div>

My sister was driving my '02 Corolla (120K miles) this morning when the RPM’s started to fluctuate between 1500-2500 for a few seconds. Did it on the highway (60 mph) and then again on a city street (45 MPH). Then back to normal. Had a tune up etc less than 2 months ago. Any ideas?

---

<div class="post-metadata">

**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [January 18, 2011, 5:35pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/2 "2011-01-18T17:35:02Z")

</div>

if it did it while it was in gear, you have slippage in your transmission. If it’s an automatic, it’s going to be expensive. If it’s a manual, it’s probably only going to be mildly expensive.

---

<div class="post-metadata">

**Author:** ![hootie1fan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/hootie1fan/32/123_2.png) [@hootie1fan](https://community.cartalk.com/u/hootie1fan)\
**Post date:** [January 18, 2011, 5:48pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/3 "2011-01-18T17:48:28Z")

</div>

Expensive I can’t do especially on a 10 year old car

---

<div class="post-metadata">

**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [January 18, 2011, 6:49pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/4 "2011-01-18T18:49:08Z")

</div>

Are the RPMs surging up? Transmission slippage.

Are they dipping down? Power loss due to fuel or ignition issue.

---

<div class="post-metadata">

**Author:** ![hootie1fan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/hootie1fan/32/123_2.png) [@hootie1fan](https://community.cartalk.com/u/hootie1fan)\
**Post date:** [January 18, 2011, 7:19pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/5 "2011-01-18T19:19:01Z")

</div>

Up and down. In thought it could be the fuel I am using, but who knows??

---

<div class="post-metadata">

**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\
**Post date:** [January 18, 2011, 7:32pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/6 "2011-01-18T19:32:09Z")

</div>

If you’re cruising along at 2000rpm does it jump to 2500, drop to 1500, or both?

If both it could also be a problem with the torque converter lockup.

---

<div class="post-metadata">

**Author:** ![hootie1fan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/hootie1fan/32/123_2.png) [@hootie1fan](https://community.cartalk.com/u/hootie1fan)\
**Post date:** [January 18, 2011, 9:46pm UTC](https://community.cartalk.com/t/rpm-fluctuations-2002-corolla/60118/7 "2011-01-18T21:46:40Z")

</div>

It does both