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  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

idle goes up with defrost?

  • Thread starter Thread starter notchnut
  • Start date Start date Feb 2, 2009

notchnut

Founding Member
Mar 6, 2001
234
0
16
New England
Feb 2, 2009
#1
  • Feb 2, 2009
  • #1
just noticed it today, car idles perfectly at about 700, when i urn on the defrost or mix (defrost/floor) the idle goes up to 950 or so. Any ideas?
 
T

tradde

New Member
Aug 2, 2005
94
0
0
Pennsylvania
Feb 2, 2009
#2
  • Feb 2, 2009
  • #2
notchnut said:
just noticed it today, car idles perfectly at about 700, when i urn on the defrost or mix (defrost/floor) the idle goes up to 950 or so. Any ideas?
Click to expand...

That should be normal. It uses the AC system to remove moisture I believe. You see the same thing when you use your AC in the summer.
 

gearhead302

New Member
Dec 17, 2003
18
1
0
newberry SC
Feb 2, 2009
#3
  • Feb 2, 2009
  • #3
the guy who tuned your car may have done this quite possibly
 

notchnut

Founding Member
Mar 6, 2001
234
0
16
New England
Feb 2, 2009
#4
  • Feb 2, 2009
  • #4
gearhead302 said:
the guy who tuned your car may have done this quite possibly
Click to expand...

interesting, because of the incresed load on the system?
 

isjoining

New Member
Mar 28, 2007
143
0
0
Orlando, FL
Feb 2, 2009
#5
  • Feb 2, 2009
  • #5
it goes up because your A/C is turned on when in defrost, like the previous poster said it uses the A/C as a dehumidifier.
 

02nightmaregt

To hell with your Mustang, I want to see your HOG!
Jul 1, 2007
513
4
19
Southern Indiana
Feb 2, 2009
#6
  • Feb 2, 2009
  • #6
tradde said:
That should be normal. It uses the AC system to remove moisture I believe. You see the same thing when you use your AC in the summer.
Click to expand...

isjoining said:
it goes up because your A/C is turned on when in defrost, like the previous poster said it uses the A/C as a dehumidifier.
Click to expand...

Exactly what i was gonna say guys. It normal dude i wouldn't worry aboot it
 

evil281

New Member
Jan 6, 2008
276
0
0
Arizona
Feb 2, 2009
#7
  • Feb 2, 2009
  • #7
mine does its as well dont worry bout it
 

notchnut

Founding Member
Mar 6, 2001
234
0
16
New England
Feb 3, 2009
#8
  • Feb 3, 2009
  • #8
Thanks alot guys, Once again Stangnet delivers:SNSign:
 

02nightmaregt

To hell with your Mustang, I want to see your HOG!
Jul 1, 2007
513
4
19
Southern Indiana
Feb 3, 2009
#9
  • Feb 3, 2009
  • #9
YUT!
 
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