Instrument infor indicates ac freon low ac cluch engage, now ac freon very low..ac cluch does not engage. recently took to shop, stated they added freon, indacator light off for approx 100 miles..during weather of approx 57 to 60 degrees off and on freon low prior to taking to shop..same after charging system. very low freon took back to shop..freon level ok but cluch does not engage.
Try disconnecting battery for two minutes to reset the system. Then start the car and check a/c operation.
SOURCE: 2003 Chevy 1500HD (6.0) Air Conditioner Will Not Cool
a refurbished compressor should be fine and will be cheaper than new, your should also replace the orfice tube (expansion), and the dryer, and the seals at the connection points.
SOURCE: 1997 2.4L Chevy Cavalier LS; Low Coolant Indicator and Temp Gauge
take the cap off of the radiator (whil engine is cold) start and run the vehicle. keep runnig 30mins after the vehicle is hot keeping notice of the rad fluid level.
keeping the cap off will prevent the pressure build up that woiuld keep the air in the system, keep adding water or antifreeze as the level goes down. this may take an hour or so.
also with the cap off, you will be able to see if your water pump is operating correctly. you will visibly be able to see movement in the rad when the pum is engaged.
SOURCE: The air conditioner quit.
Check the fuse box under the hood. The fuse to the A/C compressor clutch may have gone bad and needs to be replaced. The other thing to is if the R134a I low in the system your A/C compressor will not work also to prevent it from seizing up due to lack of compressor oil from the R134a. You can buy a recharge kit to recharge the system for around $50.00, just make sure you buy the kit with a gauge. The low side where your going to be charging the system should be anywhere from 35PSI to 50PSI and the high side should be around 150PSI to 200PSI. If you do have a leak and you lose your A/C with in 1 month, your going to have to have it repaired, most of the time it's going to be a bad O ring.
Good luck and keep me posted. Be glad to help. and almost forgot, check the relay to the A/C compressor too.
SOURCE: Fuse is OK but air conditioner doesn't work '94 GMC Yukon.
yes alow presure switch is likely on GM and it could be out of freon ,safe way to tell is to put a set of gauges on it and it will tell by passing the low side switch will just destroy the compressor if it is out of freon
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