Recharging a AC sysyem on my suburban...
 

Got a 1999 suburban and the ac blows hot air. How can I recharge the system. Is it something I can do at home.

yes. I by recharging kits at auto stores and they work fine, so long as you have a newer vehicle ( which you do ). Just follow the directions, shouldn't be more than 15 minutes of your time.

I'm not sure how accurate those gauges are, but I think they're a joke. I would add one can to the low pressure side using a good 'ol installation hose for R134A systems and let the A/C run for a while. If that doesn't solve it, have the system professionally recharged.

Besides, if you head over to the shitty side of town, you can often find guys (probably unlicensed, but who cares) that will recharge your system for $25 labor (at least around here). At that price, it doesn't make much sense to fuss with it yourself. :2cents:

I had a '96 K1500, it's real easy to do, but you may need more than one 16 oz can. Just make sure you have the car running and the AC on full blast. When you start recharging, the clutch on the AC should start clicking

If the compressor is not coming on, it's probably because it shut off to protect itself due to the low refrigerant levels.

To "reactivate" the compressor, disconnect the negative battery cable for a short period of time before attempting to charge. When you reconnect the cable, immediately turn on the vehicle and AC and start charging right away...it will run for a short period of time before it'll shut off again due to low refrigerant...that's your window of time for it to accept a charge.

Well got the kit and found a leak. When I took the top off to recharge I heard a hissing noise and told the autozone guy, he said thats where the leak is coming from..The compressor is kicking in just fine.