No A/c

[rich21]

i just put my a/c on today and no cold air blew out it was warm air. what can i t be? i noticed that the clutch doesnt turn when i put it on. i need help

[monarch]

When the refrigerant level in the system gets really low the magnetic clutch won't activate and the compressor won't turn on. The solution is to add some R134a refrigerant through the low pressure

port (black colored cap). This can be done by getting a can or two of R134a at an auto parts store and a can tap valve with a recharging hose. Remove the black cap and screw the charging hose onto the fitting then immerse the can in a bowl of water that's about 110 degrees F (120 degrees or more could burst the can and cause severe eye injury or blindness and frostbite to any skin surfaces). The hot water will build up enough pressure in the can to force gaseous R134a into your AC system. Once the can is empty or near empty enough refrigerant will have been added to allow the magnetic clutch to activate. Next you need to locate the receiver-drier and the sight glass built into the top of it. Then you need to run the engine with the AC on and observe whether or not the sight glass is clear or has a stream of foamy bubbles. If the latter, you need to add more R134a (with the engine and AC running) until the bubbles dissappear.

Before doing any of the above, press slowly down on the tire-like schrader valve underneath the black cap to see whether or not you hear air (refrigerant gas) escaping. If you hear some gas coming out then you can proceed with the above procedure. If you don't hear any gas escaping then the system is totally empty of refrigerant (due to a severe leak) and the leak will need to be located and repaired, plus the system will need to be vacuumed using a vacuum pump and then recharged into the deep vaccuum (all of which requires special equipment that only AC service shops have).

[rich21]

very useful thank you