Hi, we did a trip of 1400 km in very hot weather and had the AC working at max most of the time durung this trip. We came back a week ago. Since 2 days now the AC is blowing a mix of cool/cold and hot air. Today I tried it again and the air blowed was even hotter than yesterday. Is this may be a lack of freon?
Country: CanadaMake: FordModel: Taurus SEYear: 2007
reading on potential problems
Sounds like you developed a leak. Look under the hood and tell me if the compressor clutch is engaging. If the clutch is engaging let me know if it cycling on and off fast or in short time periods. No clutch engagement or short cycling can be caused by low freon. Most shops use a black light to visually check for a freon leak. Ford has used dye in the A/C system oil for some time so in most cases the leak can be found without adding dye. Most after market freon charge kits have a sealer in them, stay away from that. Best to take it to a shop or the dealer unless you can get freon with no sealer, and if you can evacuate the system if there is a leak found.
once the a/c system is open all moisture and contaminates need to be removed before it is charged again. Otherwise the system will not work well at all.
let me know what you find
Hi, I was thinking to buy a kit to add freon through the small vertical pipe near the coolant reservoir. is this a good idea? Looks like something complex to correct by myself a AC problem. What is the role of coolant in AC system? The AC level in reservoir is ok. Thanks.
not hard to add freon to the low side of the a/c system. If there is a leak it will continue to leak, even if they say the freon has a sealer in it. The sealer can clog they system and cause more problems.
coolant or anti-freeze does not have much of an effect on the a/c system unless the engine is running hot or overheating.
I am not familiar with a compressor clutch, how can i know what to look for? If i understand correctly by adding freon without fixing the leak the AC will work fine until the leak make the level of freon too low, right? Thanks
If the leak is slow or small it will probably get the vehicle cold again. The compressor is near the bottom of the engine, towards the front. On the end of the compressor is the clutch, coil and pulley. The pulley turns with the drive belt and when the coil energizes it pulls the clutch plate to lock against the pulley. this turns the compressor shaft circulating the freon.
30 years experience ASE Master tech L1& T2 . Ford certified
I see, while waiting for your latest answer i have opened the hood, turn the engine on and turned the AC on, the air was cool but not cold, if by adding some freon this will make it work then i will try this for now if there is no risk of doing more damage. Didn't noticed anything in the engine but i will looked again tomorrow morning as this is not obvious to check for a compressor clutch with a flash light.