There is a filter/strainer screen on most AC liquid lines between the condenser and indoor evaporator coil. This strainer is probably stopped up and needs to be changed.
Look at compressor when engine running-You should be able to see if compressor clutch is pulling in. Try with A/C on and then with A/C off to see difference
Check charge. (R12)
The Air conditioning compressor is likely seized. There is a clutch in the pulley that engages the compressor when the A/C is turned on. You can easily check the compressor (with engine off make sure the pulley has had time to cool off as it will be very hot) Try to turn the most center part of the pulley. If you cannot turn it by hand the compressor is seized. The smoke was MOST likely from the serpentine belt rubbing on the seized pulley when the A/C compressor was engaged. Please note that the same belt drives the power steering pump. This belt will be destroyed from the heat and must be replaced to prevent a possible steering failure.
It is probably low on R134 refrigerant, compressor clutch may be going out also but it is most likely in need of a recharge.
Check the coolant pressure. If the pressure is too high the A/C clutch will not engage. If the pressure is within tolerance, test the A/C compressor and clutch.
it keeps the refridgerator cool
Check to see if compressor is working - if not may be a bad fuse (at the compressor) or low refrigerant charge Make sure temperature control is working and is set to "cool" position
DOES THE COMPRESSOR CLUTCH STAY ENGAGED OR DOES IT CYCLE ON AND OFF. ON AND OFF MEANS ITS TRYING TO BUILD UP PRESSURE,BUT WITH LOW OR NO REFRIGERANT IT WON'T COOL.SO THE FIRST THING TO CHECK IS THE PRESSURE. YOU CAN PICK UP A GAGE AT AN AUTO STORE FOR ABOUT 7-10 DOLLARS.THERE COULD BE A BAD LOW PRESSURE SWITCH ON THE SYSTEM.MAKE SURE YOU ARE CHECKING THE LOW SIDE THATS THE ONE THAT GOES TO THE ACCUMULATOR. GOOD LUCK PAUL G
Usually, on most cars, this means that the weather is cool or that there is insufficient refrigerant in the system. It can also be caused by a restriction in the AC system or high temperature or excessive amount of refrigerant in the system.
Either the fan clutch has failed, or the airflow through the condenser is restricted.
First check to see if the Geo Trackers AC compressor is running by looking at it and seeing that the clutch middle part is spinning. If it is, then check the freon pressure with a gauge. Low freon is the most common cause of AC air not being cool enough.
If you have to ask this question, you may want to take it to a shop! It if fairly simple and requires the removal of the purge tank on pasenger side in engine compartment so access to the compressor is eaiser! Then just loosen the belt tensioner located near the compressor! Unbolt compressor from block and remove the cap where two lines are atteched. Make sure you add oil to the new compressor. Also replace dryer located behind headlight on same side. Reattach all and pump out the lines then refill and cool off!