A/C problems in a '93 vert...

[supra brit]

This isn't my car, I'm doing research for someone who came into my work yesterday...

The girl has a '93 vert. When she pushs the A/C button on the climate control, the back light doesn't light up (the 1 that indicates the button is pushed), and it blows air, but not cold. Is it a switch, a relay, or something else?

Thanks!

[navysnail]

when the button is pushed, does the AC compressor engage?

[benemorius]

Damn. What's with all the a/c threads here? I know I saw one just like this last night... in fact it's probably somewhere further down on this page right now...

Almost certainly it is low on refrigerant. The system disables the a/c clutch (and that light along with it) when the refrigerant pressure drops too low.

[benemorius]

zerothread?id=126029

[navysnail]

i thought the same with the low refrigerant too, but the same symptoms can happen if the system is over filled too.

the dryer has a sight glass, look in it when its running and see what it looks like. you should see no bubbles, if it looks like a foggy mist, then it is almost out of refrigerant.

if the compressor doesnt kick when you turn it on, then the low pressure switch has probobly closed and disabled the system to protect itself.

[supra brit]

Thanks everyone - I don't know jack about a/c (never had a car with it)...but I'm tryin to learn.

By the way, this girl's 'vert used to be Shania Twain's...seriously. And it has a tow hitch on the back that she used to tow around her horse with...talk about KA power!

[navysnail]

my car came with a trailer hitch too although i sold it to dave coleman.