SPONSORED LINKS

RPM's will go up slightly sometime when driving?

Tiny
MDMBOHO
  • MEMBER
  • 2004 JEEP CHEROKEE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 10,400 MILES
My jeep engine's rpm's will go up slightly sometime when driving, not all the time but more lately. Also when I stop at a light it will sometimes cut off. What causes this?

thanks, dawn boho
Wednesday, January 6th, 2010 AT 1:55 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

It sounds like you might have an issue with the throttle actuator.
This vehicle is equipped with a electronic throttle actuator. Sometimes when the actuator becomes dirty it can have similar issues that you are experiencing. As when its dirty the ECM may not get the correct data and that can have issues with engine idling or acceleration.

This part can be cleaned out and many times that will solve the issue.
Here are couple of helpful guides:

https://www.2carpros.com/articles/how-a-throttle-body-works
https://www.2carpros.com/articles/throttle-actuator-service

While you are at the throttle body it is a good idea to service the idle air control motor as well. As that can be dirty and triggering idling issue.

https://www.2carpros.com/articles/idle-air-control-valve-service

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, September 23rd, 2021 AT 12:14 PM

Please login or register to post a reply.

Related Engine Revs Up Content

Idle Air Control Motor Replacement
GUIDE
Idle Air Control Motor Replacement
The idle air control motor or idle speed control motor is designed to adjust the air flow into the intake manifold at engine idle. Engine idle speed is monitored by the PCM...
VIEW MORE

Sponsored links