SPONSORED LINKS

1998 GMC Jimmy A/C blows hot air all time

Tiny
SCRAPPY69
  • MEMBER
  • 1998 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Jumpd pressure switch got it to take 2 cans freon as soon as I unplug jumper compressor kicks off cans get real cold when adding to system has automatic climate control but blows hot comp wont come on when driving hear clicking an hot air jumps from def to vents to floor when switch is off no matter where the switch does same thing?
SPONSORED LINKS
Wednesday, July 28th, 2010 AT 12:10 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Probably your low pressure switch is bad as i'm assuming that is the one you jumped. And yes freon cans will get cold when adding to a system and if you don't do it right you won't get enough in or to much as it sounds as if you aren't using gauges so you have no idea of how much you have in. It also sounds like your vacuum is leaking or the switch is bad due to it won't stay in one position.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Friday, July 30th, 2010 AT 5:48 PM

Please login or register to post a reply.

Related Air Conditioner Blows Hot Content

VIEW MORE

Sponsored links