95 chevy blazer 4.3L. I turn on my ac and it only blows mildly cool air. I bought a recharging kit that has a easy gauge to read. When I plugged it in the gauge read almost 100 psi, good running pressure is 25-45. the back of the gauge says anything in the red, seek help.
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Pep Boys, Autozone, Advanced Auto, Napa, most all the major auto parts stores carry a recharge kit...a few Wal Marts even carry them---Or you can buy them online fom Amazon, Ebay, etc...
In most kits you'll find a can of refrigerant, a flexible rubber hose and a pressure gauge. Follow the instructions in the package to assemble the pressure gauge part of the kit. Usually you'll have the hose already attached to the gauge, such as this one.
try like this frist you want to found the AC compressor relay by using fornt fuse box cover.after that remove the AC relay.then you start the jeep and turn on AC at that time AC switch not blink king you have to replace AC compressor
I would suspect you have a bad A/C compressor. When you engage the A/C, the clutch locks up the pulley which kills your motor from the drag on the belt. Replace the compressor, evaporator and valve, then recharge system to 55 psi.
If the blower works but its just not blowing cold air, its possible to recharge the AC system yourself. Most auto parts stores carry AC recharge kits. Instructions to recharge the AC are belowl
RECHARGING AC SYSTEM
1.Turn the truck on and turn AC on HIGH 2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire) 3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet) 4.Insert the other end of the refill hose to the low side valve 5.Puncture the R-134A can with the screw on the refill hose 6.You should feel the system suction the refrigerant out of the can 7.Check for frost on the AC lines and the air blowing inside the truck 8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective
Best of luck and enjoy your vacation. Greg
Hopefully this answers your question and you're able to get your AC working again. Best of luck.
jasonjacob1 is right. If the air from the A/C is not cool, the only cause is low or empty refrigerant. This means that the gas that your vehicle uses to produce cool air is gone from the system. The solution is not to recharge the system but to locate and fix the leak, then recharge the system.