jmc

Well it was 95 in the shade today...Had a 2 1/2 hour trip... as soon as I left I realized the A/C was not working.. Fan blows hot air... Checked all the fuses... I can see with the motor running and A/C on, that the compressor is not running... Is there something I can test or check??? Have had zero problems with my truck (02-Lariet Crew Cab)...

Is there anyway to check to see if the compressor has gone bad??? Was driving all week with no problems

Too Hot to wait around.

Thanks for all that can help

jmc

Just call me Sean

iTrader: (1)

You will need a set of gauges to check the a/c. You can get one of those cans of freon with the low side gauge on it and try adding freon. It probably needs some.

jtherr

if you unplug the pressure switch the compressor should kick in. If it doesnt then probably the compressor or wiring up to it.

good luck

Just call me Sean

iTrader: (1)

No, if you unplug the switch and use a piece of wire to jump the terminals then the compressor should come on.

jtherr

i stand corrected

Just call me Sean

iTrader: (1)

You were close.

wde3477

Please keep in mind that while low freon is the cause of a lot of A/C problems - it's not the only cause.

In other words, chances are that you'll get lucky and get things running again by dumping some freon in the system.

The caveat is that if you don't fully understand the problem, there is a fair chance that you will make things worse - through either the damaging of equipment, or damaging of one-self - both of which will likely cost more than getting a professional to take a look.

If you choose to probe further - please be careful - and be sure to wear appropriate hand and eye protection.

transmaster

Get yourself a manifold gauge set, you can get them less as cheap as 50 dollars. One of the things that happens is the orifice tube get clogged. If your pressure is good then there is a good chance this is problem. My advice unless you want to get the equipment to do the work yourself, ,just take to a repair shop. After all of these years you should have the system flushed out a new Orifice tube and accumulator/dryer tank. Make sure you replace the orifice tube with the variable version for 105" degree + .service.