SPONSORED LINKS

RPM's go higher than normal then balance out

Tiny
MELISSA DODSON
  • MEMBER
  • 2012 HONDA CIVIC
  • 4WD
  • AUTOMATIC
  • 82,000 MILES
I added Gum Out octane booster few weeks later I noticed my rpm's started acting weird. When I go to stop they go down normal towards the one then jump up then back, same as when I'm driving faster the rpm's will go higher than normal then balance out. I'm a single mom and don't know a trusted mechanic in my area and don't want to pay for more than needed.
SPONSORED LINKS
Thursday, February 28th, 2019 AT 9:58 PM

5 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This sounds like you might have a vacuum leak. Is there any way you could take a video of what's going on and upload to us? This would help us confirm a definitive answer to what's going on.

Thanks,
Alex
2CarPros
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 1:59 AM
Tiny
MELISSA DODSON
  • MEMBER
  • 3 POSTS
Thank you so much. I will try to send a video.
Was this
answer
helpful?
Yes
No
Friday, March 1st, 2019 AT 8:43 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,425 POSTS
Hello,

If I can jump in here is sounds like you need to service the throttle bore. Leave the bore wiring connected while you do the service. Here is a guide to help:

https://www.2carpros.com/articles/throttle-actuator-service

This guide can help as well:

https://www.2carpros.com/articles/engine-idles-too-high

Please run down these guides and report back.
Was this
answer
helpful?
Yes
No
+1
Monday, March 4th, 2019 AT 11:03 AM
Tiny
MELISSA DODSON
  • MEMBER
  • 3 POSTS
Thank you.
Was this
answer
helpful?
Yes
No
Monday, March 4th, 2019 AT 3:52 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,425 POSTS
Please let us know what happens :)
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Tuesday, March 5th, 2019 AT 9:51 AM

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