Recently charged my AC and it works fine UNTIL- I get going down the highway (60 mph) then it starts blowing warm air. When I turned off the highway the compressor kicked on again and worked for a little bit, then quit again. When I parked it here at home I opened the hood to see the compressor was not working at all. Later, I went out to see if would work. Turned on the AC, and it took a few seconds for the compressor to kick on, then it stayed on like it should, then after it had been running for a while it kicked off for a few seconds every so often, which I think is normal, right? So what can it be? Relay? Compressor? Clutch? Help please!
Unless you have a very bad leak,I wouldnt think the low pressure switch would be kicking out right after charging it.That is why I asked what your pressures where.If it has to much freon in it,the high pressure switch will kick it out also.It could be the clutch too.There seems to be alot of issues popping up with very similar problems.You could also have a stopped up orifice tube,causing the pressures to spike and kick it off.
got a 97 and mine has had these issues. thought it was my freon, but it's just a danged wire harness on the top of the compressor. i replaced the sensor on it, that helped, but check while your truck is running and lightly move the wires or jiggle the harness. mine has a bad connection and when i slightly move the connector, the clutch comes right on and the air is COLD.
right now, i've got like 3 zip ties putting some tension on the connector to hold it and allow it to make a good connection, yeah it's pretty rigged, but the ford dealership acts like they don't know what kind of pig tail i need, go figure, about to walk around with some wire cutters while i'm "looking" at some of their trucks and get what i need.
A friend of mine had this problem also, we had just jumped the wires so the clutch always stayed on, but i didn't really like this, so i bought a new sensor, but now my pig tail is loose for some reason. good luck, but it's really not a complicated fix.
got a 97 and mine has had these issues. thought it was my freon, but it's just a danged wire harness on the top of the compressor. i replaced the sensor on it, that helped, but check while your truck is running and lightly move the wires or jiggle the harness. mine has a bad connection and when i slightly move the connector, the clutch comes right on and the air is COLD.
right now, i've got like 3 zip ties putting some tension on the connector to hold it and allow it to make a good connection, yeah it's pretty rigged, but the ford dealership acts like they don't know what kind of pig tail i need, go figure, about to walk around with some wire cutters while i'm "looking" at some of their trucks and get what i need.
A friend of mine had this problem also, we had just jumped the wires so the clutch always stayed on, but i didn't really like this, so i bought a new sensor, but now my pig tail is loose for some reason. good luck, but it's really not a complicated fix.
Ok guys, talked to my mechanic today (had not talked to him since he worked on my truck last Wednesday) I've only had my truck almost 2 months, so I'm still getting to know all of it's quirks. He actually took out coolant, and put it back where it should be along with dye to check for leaks. I picked up a low pressure switch today at Carquest, and now my AC works great!! I stopped at Advance first but they could not get it at all, but the Carquest in town had it in stock. I'm starting to become a fan of Carquest! Thanks for your help guys.
Well, my AC is working better, but not right... While out today it started blowing out hot air again. It did it in town once and on the highway once. I turned it off for a couple minutes, then turned it back on and it would work fine. I think it has a bad clutch, what do you guys think? (I replaced the low side pressure switch a few days ago, and the system is charged properly and the orifice tube has been inspected.
after i purchased the sensor, it was like the two wire pigtail was loose and the connection was not quite as good, so that's why i had to put zip ties on it to keep it tight. i'd hit a bump and it's start blowing hot air. good luck finding a replacement pig tail because Ford looked at me like i was speaking japanese when i showed them a pic of it and etc.
:tard:
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