You have to find out which problem you have before you add refrigerant. It's worked for me about 75% of the time. This is a job for a pro. All that's needed is a set of gauges, somebody who knows refrigerant, a pressure -vs- temperature table and the ability to read. If you can answer no to any of the above questions, you need to find a shop that has the proper equipment before you start throwing unnecessary and expensive parts at it. Allow the refrigerant to recharge the system until the can of R134a is empty.
Locate the air conditioner low-side service fitting. Have you guys ever heard of this?. Because the ports are different sizes, the refill kit hose should fit only on the Low Pressure Side port. It's blowing hot air except when it's first charged. That's false, and being now you've said nothing has been done on 10 years then it's probably just the opposite, lack of R134 charge. This is most likely due to lack of refrigerant within your air conditioning system.
The location of the port varies, but it is usually in front of the engine block. Obviously if it does work, then it means that you were low on freon which indicates a leak somewhere so eventually you'll have to throw more r134 at it With my old car Mazda Protege I used to do this every summer. They are going to have to drive it around until it shuts off, and in the morning, that could take a long time. Because of that I was just hoping that maybe it was something else cheaper that might be causing it but he was unaware of. The Low Pressure Side port is smaller the High Pressure Side port.
You really do need to know both the high and low. So you are better off using straight freon in these cases. Therefore, it only stands to reason that the compressor is also on the left. What you describe is an indication of an over charge. I know it wasn't my questiong, but I sure am grateful for all of the responses given. Once you identify them, start the engine and allow it to warm up to normal operating temperature.
No sense spending money on freon when youre going to have to have your entire system vacc'd and checked. But it would then bring hot air through the vents because the heater core is there too. As liquid coolant is pressurized in your compressor, it enters a gas phase and is then cooled back into a liquid state. So if the coil bites the dust the compressor will never engage. I don't have a good sense about whether driving conditions affect it, but my sense is that it seems to go out more quickly and frequently the hotter it is and the more I'm in stop and go traffic. Check your air conditioning system pressure using an automotive air conditioning pressure gauge. The only safe way to come back from black death is to replace the entire system.
As your 2000 Ford Expedition ages, the air conditioning unit will gradually lose its ability to cool the cabin of the vehicle. The thing is I've never put refrigerant in it, and I don't think any has been added in the ten years I've owned the vehicle. Connect the R134a recharge hose to the low-side fitting under the hood. When the air conditioner in your 2006 Mercury Mountaineer starts blowing hot air, you likely have a freon leak. They said the pressure was all off and then did an evac and refill. I mean from what I've seen, if the system can't take anymore volume on the high side the high pressure switch activates and shuts the compressor down. The… AnswerTry recharging the whole system.
I'm having a strange to me problem with the air conditioning on my explorer. It may take anywhere from half a can to a few cans depending on how low on refrigerant your system is. I will need to know what type of vehicle it is. The thing is I've never put refrigerant in it, and I don't think any has been added in the ten years I've owned the vehicle. You should always attempt to verify the information with your vehicle manual or information provided on the underhood stick, sometimes also located on the top of the accumulator. Did your mechanic put a set of gauges on it and actually look at both the high and low pressures? On my Mustang it didn't work because I had a clogged orfice tube. As cheap as a set of full gauges are.
It's built to function during the worst midday heat, so you don't have to worry about overheating your engine even after hours of non-stop driving. Connect the R134a recharge hose to the low-side fitting under the hood. Unfortunately, it didn't solve my problem. The only way to really get an accurate charge, especially if the charge is done on cool or very hot days is to charge from a vacuum state by weight, not pressure. Check your air conditioning system pressure using an automotive air conditioning pressure gauge. Most kits will have you hold the can upright when you recharge the air conditioning system.