Menu

1999 corvette AC blows hot air

Put gauges on and the readings are OK. Compressor runs but still hot air only.

Comments for 1999 corvette AC blows hot air

Average Rating starstarstarstarstar

Click here to add your own comments

Oct 20, 2010
Rating
starstarstarstarstar 		cant have a vette full of hot air**
by: Auto Appraiser * Ned

simple things to check...hot air blowing as you say with gauges reading correct pressure in the system? compressor is either kicking in and pumping or not? pressurized system ...compressor clutches kick in and pumps...it will blow cold. compressor does not kick in with pressurized system it will blow hot. follow small side of a/c lines (high pressure side)from compressor back to somewhere near firewall...there will be a 2 wire switch threaded and plugged into the line this is the pressure switch. what this does is protect your compressor from kicking on without pressure in the system and burning out the compressor. If system has pressure...turn a/c to the on position...unplug the switch and use test light to the plug side wiring to confirm 12 volt power is coming to the wire when turned on. If not problem is in the dash control unit or fuse panel (blown fuse or relay). If power IS coming to the wire...turn key OFF first...then jump connection across plug to the pressure switch....this will bypass the pressure switch and then start vehicle to see if compressor kicks on. If it kicks on compressor it should blow cold. if this try works.... replace pressure switch. you can thread it in fast without losing too much gas...its like s tire schrader valve slow unthread you will lose gas/air...quickly you will reseal it without losing anything. hope this helps.
Aug 25, 2010
Rating
starstarstarstarstar 		Could it be that on the dash
by: Intercepter47

that you press the A.C. button and the button next to it that circulates the air outside the cabin inside INSTEAD of the circulating inside the cabin itself.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to C5 Corvette Ask!.
























Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
Chris Trautman @ Corvette Assembly Plant 2019

About Us: Corvette Web Central | Owner Bio: Chris Trautman

Established in 2008 by Chris Trautman, Corvette Web Central quickly grew into one of the top leading Corvette enthusiast websites globally. 

"This website is a passion of mine, just as much as being a Corvette owner," says Chris.  He was frustrated trying to find information on the internet about Corvettes which was was not biased or influenced somehow. 

He has owned three Corvettes over the last twenty years and does not plan to stop owning one anytime soon.

Note: Some links on this page are part of our affiliate program and provide a small portion of proceeds to fund the administrative costs and to fund more product reviews.  We are not paid to perform the reviews or are we given any products for free.  

You might like these