mustang ac problems. HELP ME - 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 08-01-2013, 08:45 PM   #1
Registered Member
Regular
 
99NewEdgeGT's Avatar
 
Join Date: Aug 2013
Location: little rock
Region: Arkansas
Posts: 24
mustang ac problems. HELP ME

My fellow brothers/sisters. I'm having an issue with my 1999 mustang gt. When I turn my ac on it idles fine in park and in neutral. When in drive, the rpms bounces up and down making the car try to take off, then shuts off. With the ac off in park/ neutral the car will idle at 7-800 rpm. In drive, it will idle at 500rpm which seems too low. Also with ac off it will not shut off neither will the rpms bounce. My baby also seems sluggish on take off's. As the rpms get higher the better my throttle response.
99NewEdgeGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-01-2013, 08:58 PM   #2
Registered Member
Regular
 
Billymich's Avatar
 
Join Date: Oct 2012
Location: Chicago
Region: Illinois
Posts: 861
Clean your IAC and MAF
Billymich is offline   Reply With Quote
Old 08-02-2013, 10:58 AM   #3
Registered Member
Regular
 
1lowGT's Avatar
 
Join Date: Dec 2011
Region: Missouri
Posts: 3,903
AC well make it bounce so I don't use mine
__________________
2003 GT - full bolts ons, suspension, and drag radials
1998 cummins - 150hp injectors | FASS fuel kit | 4" straight pipe | 5" lift | BHAF | 20" wheels | edge juice w/ attitude | built auto trans with stall | closing in on 900tq | bigger turbo soon..

Follow me on instagram @nicknold for car and truck pictures
1lowGT is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-02-2013, 09:14 PM   #4
Registered Member
Regular
 
99NewEdgeGT's Avatar
 
Join Date: Aug 2013
Location: little rock
Region: Arkansas
Posts: 24
Quote:
Originally Posted by Billymich View Post
Clean your IAC and MAF
YELP, replaced iac....NOTHING lol. Cleaned maf, Nothing. I'm stumped. Will try replacing ac low pressure sensor tomorrow.
99NewEdgeGT is offline   Reply With Quote
Old 08-03-2013, 01:17 AM   #5
Registered Member
Regular
 
1lowGT's Avatar
 
Join Date: Dec 2011
Region: Missouri
Posts: 3,903
Hmm idk man does it idle fine with it on
__________________
2003 GT - full bolts ons, suspension, and drag radials
1998 cummins - 150hp injectors | FASS fuel kit | 4" straight pipe | 5" lift | BHAF | 20" wheels | edge juice w/ attitude | built auto trans with stall | closing in on 900tq | bigger turbo soon..

Follow me on instagram @nicknold for car and truck pictures
1lowGT is offline   Reply With Quote
Old 08-03-2013, 01:34 AM   #6
Registered Member
Regular
 
99NewEdgeGT's Avatar
 
Join Date: Aug 2013
Location: little rock
Region: Arkansas
Posts: 24
Quote:
Originally Posted by 1lowGT View Post
Hmm idk man does it idle fine with it on
Yeah. But only in park or neutral will it idle at 500rpm without bouncing. The min its in gear or reverse she drops from 500-200-500-200
N dies. Talk about stumped!!!
99NewEdgeGT is offline   Reply With Quote
Old 08-03-2013, 07:52 AM   #7
Registered Member
Regular
 
Join Date: May 2013
Location: Yuma
Region: Arizona
Posts: 256
How old is the compressor...original?

I had a similar issue but opposite with another car I have. When in a driving gear everything was fine, but in park at idle rpm dropped and bounced around, cel would come on. Turned out compressor was shot.
FanOfSkynyrd is offline   Reply With Quote
Old 01-17-2014, 07:08 PM   #8
Registered Member
Regular
 
99NewEdgeGT's Avatar
 
Join Date: Aug 2013
Location: little rock
Region: Arkansas
Posts: 24
SOLD HER and got a s197. It was the AC clutch.
99NewEdgeGT 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


» Members Mustangs

Ruby

Beau B

Beast

jays86lx
Add your Mustang
» Like Us On Facebook



01:29 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.