I had my air condition compressor replaced a few years ago and now the system does not always blow cool air.

The A/C compressor will not engage if the refrigerant is low in the system.

could be low on coolant..in AC system..

try charging your ac system

Unfortunately you might have a coolant leak, in spite of the A/C inspection. I'd get a second opinion from another mechanic. Have the mechanic check to make sure your condenser is not clogged with dirt, rocks and road grime, preventing the A/C system from cooling properly. Notorious problem for automotive air conditioning.

Check to see that the fuse to the A/C is not blown and that the compressor is cycling on and off as it should. If the the A/C pressure switch was not inspected, it should be inspected and tested for proper operating.

One last thing. Also have the mechanic check the pressure in the A/C system, and that there is sufficient refrigerant in the system.

Hope this helps.

Good Luck.

If your car is more than a few years old, it probably has a leak or a worn compressor. You can add too much freon for the system. It needs to be vacuumed down to a negative pressure before adding freon, and then checked for compressor function and leaks. You may need to take it in to a reputable shop.

sounds like the first leak was not found . Need to bring it back in. And state that you should'nt have to pay again because it either is a defective replacement or the leak was not in the last compressor that was condemed.

never seen a truck like this ,iam in spain but from the sound of it one belt drives a/c and another the power steering and altenator ,pos water pump as well but this could be driven by the timing belt .As i said i have never seen one of these trucks .If i had it in front of me i could soon tell you .

I also have a 2004 Kia sedona with approx. 80,000 miles on it. The air conditing system stopped blowing cool air into the car. The fan would work, but would not blow cool air. After doing a lot of research. After trying to find a car repair manual or diagrams for the Kia Sedona with no luck. We ended up taking it to our machanic. He then replaced the compressor and it is working fine now. I now know that this is common for the compressor to go out on this van.

Danny

hi there is a belt that drives the air conditioning compressor it rides on a pulley as does the altenator visually inspect the pullies to make shure there is no belts missing if so replace now there is a relay that engages the compressor and also there is a low pressure switch that determines if there is sufficiant gas pressure in the system if the pressure has dropped re leak in the cooling system then you have no pressure to turn on compressor this would let the air conditioning to not work first check to see if you have airconditioning system pressure by looking into glass sight lens if lense is green its got enough pressure if its not green you need to replace gas inside cooling system good luck with project and keep cool

this not really a problem as the fan speed is controlled by the high preasure switch in the ac system the hotter it is outside the higher the preassure will be in the system as hot as its been the preasure is high already when the compressor cycles it pulls suction on one side and outputs high preasure on the other the fans cool the condenser the higher the ambient temp the faster they go so all is fine...