Idle problem - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 03-20-2014, 04:10 PM   #1
Registered User
Newbie
 
Join Date: Jan 2014
Location: Baza, Spain
Region: Europe
Posts: 16
Idle problem

When I have the air conditioning on the engine idle speed is erratic - up to 2000 rpm then dropping down, then back up again.

Can anyone suggest what the problem might be?

Cheers
Alfredo is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-20-2014, 04:30 PM   #2
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,411
The likely problem is your Idle Air Control valve is worn out.
straybullitt is offline   Reply With Quote
Old 03-20-2014, 05:01 PM   #3
Registered Member
Regular
 
Roguestang's Avatar
 
Join Date: Nov 2011
Location: Tampa
Region: Florida
Posts: 1,516
If it surges only when the A/C is on, it could be a sign of your compressor going out.
__________________
2000 Mustang GT-Former giggle gas addict
1990 Mustang GT w/ Vortech V3

***resident gun idiot***
Roguestang is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-20-2014, 05:55 PM   #4
Registered Member
Regular
 
Join Date: Mar 2013
Location: Salinas
Region: California
Posts: 7,411
^ Or that also...
straybullitt is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Rough idle with a/c & Defrost Mustang936 1996-2004 Mustang GT 20 06-22-2017 10:16 PM
Starts fine but refuses to idle deltadart11 Pre-2005 V6 Mustang 3 02-26-2013 06:54 PM
Idle problem? Venomouz831 1996-2004 Mustang GT 35 06-11-2012 01:49 AM
humming noise during idle robertoortiz85 1996-2004 Mustang GT 6 10-23-2011 03:12 AM
Idle problem Stang.racr 1979-1995 Mustang GT 8 07-05-2011 07:19 PM

» Like Us On Facebook



12:20 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.