Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - Reply to Topic
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace

Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat > RPM's stay high or vary randomly at idle

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    

Thread: RPM's stay high or vary randomly at idle Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Focus Centennial Edition Sedan
Your real name.
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
04-21-2013 10:06 AM
p58ff IAC did not help. Thinking it might be a vacuum leak as I just noticed the rubber fitting that connects the PCV line to the throttle body was in bad shape. Need to address that first I think.
02-18-2013 07:55 AM
focusse13 IAC valve maybe?
02-17-2013 01:32 PM
whynotthinkwhynot Not really, as long as you're on those settings the AC idle is going to be set.

Which engine do you have? Have you checked the usual suspect- the PCV valve line? That or any other vacuum leak you can find under the hood by listening for a hiss. Follow the VECI vacuum schematic for locations. Just trace down the lines- there are only about 5 or 6.
02-17-2013 12:42 PM
p58ff It could have been as it was in the 30* degree temp range and I was clearing snow among other things. I had forgotten about that possibility.
That may account for the fans spooling up but that still leaves the erratic idle speed/raised idle speed issue during regular driving.
02-17-2013 10:15 AM
whynotthinkwhynot Is the DEF or DEF/FLR selected in the vent selector? If so, that will turn on the AC even if you have heat on.
02-17-2013 09:44 AM
RPM's stay high or vary randomly at idle

As the title says the engine speed has been acting strange recently. I first noticed that the engine speed was staying high when I stopped for stop lights and the like. It was up in the 2K RPM zone. The accelerator pedal is not sticking from what I see.
Yesterday after using the car to jump a dead battery on my truck the engine speed just started climbing then went back down. After a few minutes it did it again and I also noticed that both cooling fans came on and I thought I heard the A/C compressor 'clack' on. Again it cycled and after a minute or so it was normal again.
I'm looking for some ideas on places to have a look to solve this mystery.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 08:20 PM.

Copyright 2002-2015 All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.


Search Engine Optimization by vBSEO 3.6.1