A/C blowing heater hot air

1995 GMC C1500
154,000 MILES
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
I have a 95 GMC Sierra Z-71 I turn the a/c on and it's like I have the heat on. The system is full of freon and it's even hot when it's off any ideas?
Jul 25, 2012 at 5:52 PM
Advertisement
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Does the temp slider feel like its moving the temp blend door?Does the temp change when moving the temp adjustment from cold to hot and hot to cold?
Jul 25, 2012 at 5:58 PM
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
I can hear the damper open and close when I turn it from cold to hot
Jul 25, 2012 at 6:08 PM
Advertisement
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
And no the temp doesn't change
Jul 25, 2012 at 6:09 PM
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
So does it actually feel like the heat is on all the time being that hot?Or is it just warm air?
Jul 25, 2012 at 6:13 PM
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
Feels like the heat is on all the time
Jul 25, 2012 at 6:20 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
what are the exact pressures running??

Roy
Jul 25, 2012 at 10:39 PM
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
Not sure I don't have gauges
Jul 25, 2012 at 10:49 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
we need these readings to further assist you.

Roy
Jul 25, 2012 at 10:51 PM
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
Ok I will see if I can rent some
Jul 25, 2012 at 11:04 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
get back to us with the pressures

Roy
Jul 26, 2012 at 1:45 AM
Avatar
BGWALT37
  • MEMBER
  • 7 POSTS
It was the blend valve actuator it wasn't closing all the way but thanks for the help
Jul 26, 2012 at 1:50 AM
Avatar
SATURNTECH9
  • CERTIFIED EXPERT
  • 30,869 POSTS
Thats what i thought it was since the temp never changed from the heater to cooler air.Glad to hear you got it figured i didnt get my email alerts you responded back till just this morning.
Jul 26, 2012 at 5:02 PM