AIR CONDITIONING ??
07-03-2007, 09:33 PM
#1
Thread Starter
Join Date: Jan 2007
Posts: 35
AIR CONDITIONING ??
Hi
The air conditioning in my 99 gt just blows out ambient air temperature, like the same temp as the vent. I got a pressure gauge and tested the pressure of the A/C system and it reads normal. Then i realized when I turn the A/C on the engine doesn't dip slightly like the power is been drawn by the compressor. I checked to see if the compressor turns on when i turn the A/C on and sure enough the compressor doesn't turn. I never heard any noise of the compressor breaking or anything like that. I looked in the manual and found a fuse for A/C clutch which im not sure is, but I replaced the fuse and still no answer.
CAN ANYONE HELP
Its really hot in there with out it.
The air conditioning in my 99 gt just blows out ambient air temperature, like the same temp as the vent. I got a pressure gauge and tested the pressure of the A/C system and it reads normal. Then i realized when I turn the A/C on the engine doesn't dip slightly like the power is been drawn by the compressor. I checked to see if the compressor turns on when i turn the A/C on and sure enough the compressor doesn't turn. I never heard any noise of the compressor breaking or anything like that. I looked in the manual and found a fuse for A/C clutch which im not sure is, but I replaced the fuse and still no answer.
CAN ANYONE HELP
Its really hot in there with out it.
07-03-2007, 09:52 PM
#2
3rd Gear Member
Join Date: Nov 2006
Location:
Posts: 641
RE: AIR CONDITIONING ??
Try disconnecting the pressure switch and jumper the two wires in the harness together. See if the compressor turns on afterwards. It's the switch on your ac line coming off of the condenser coil just to thedrivers sideof your upper radiator hose.
07-04-2007, 01:33 AM
#5
4th Gear Member
Join Date: Sep 2006
Location:
Posts: 1,031
RE: AIR CONDITIONING ??
ORIGINAL: LetThePoniesRunFree
Or a malfunctioning pressure switch. 
ORIGINAL: PRO50SC
Could just be low on freon if the above suggestion works.
Could just be low on freon if the above suggestion works.
Also don't leave the jumper on for more than a few seconds, just to test, because if it is low on freon and you run it like that you WILL seize the compressor.
07-15-2007, 04:18 PM
#6
Thread Starter
Join Date: Jan 2007
Posts: 35
RE: AIR CONDITIONING ??
Hi
So i put some more freon in, and now the compressor turns on and turns for like a second then shuts off and i can hear near the fill cap a electrical switch turning on and off. Is this the pressure switch? if it is can i fix that my self
So i put some more freon in, and now the compressor turns on and turns for like a second then shuts off and i can hear near the fill cap a electrical switch turning on and off. Is this the pressure switch? if it is can i fix that my self
07-16-2007, 07:29 PM
#8
I ♥ Acer
Join Date: Sep 2005
Location: Illinois
Posts: 6,190
RE: AIR CONDITIONING ??
It is very possible you didn`d add enough refrigerant. If it is low it will cut off on low pressure and restart when the pressure rises in the system than cut off again and keep doing this untill you have the proper amount in the system.
