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timcrystal1

Ford GT AC Compressor Failure

Hey, I'm having a weird issue with my 2006 Ford GT (gasoline engine). The A/C compressor seems to have just shut off completely. One minute it was working fine, the next, nothing. The air conditioning system doesn't switch on, and of course, no more cold air. I even hooked it up to a code reader and there's an error stored related to the A/C. I checked the fuses, and they seem fine. Could it be the pressure switch or a refrigerant leak? Any ideas?

Summary of the thread

The 2006 Ford GT's A/C compressor failure could be due to a few potential causes. The initial suspicion was a pressure switch issue or a refrigerant leak, but another possibility is an undervoltage problem affecting the compressor's operation. Checking the battery, alternator, and electrical connections is recommended, as these can cause voltage fluctuations that impact the A/C system. Ultimately, the issue was traced to a faulty belt tensioner causing the belt to slip, which was resolved by replacing the tensioner.

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4 comment(s)

marckoenig64

Man, that sucks! I had a similar problem with my Ford Mustang, although mine's a bit newer. My air conditioning wasn't cooling either, and it turned out to be an undervoltage issue causing the compressor to not kick on. Did you check your battery and alternator? Maybe the system is detecting low voltage and shutting down the A/C to protect itself. I'm just guessing here but it's worth a look before you start tearing things apart.

timcrystal1 (community.author)

Undervoltage, huh? Interesting. I didn't even think of that. So, when you say undervoltage, was it a simple fix like a new battery, or was it something more complicated? And how did you figure out it was the undervoltage causing the A/C to fail? Any specific tests you did?

marckoenig64

Well, in my case, it wasn't just the battery itself, although it was getting old. The real problem was a bad connection to the alternator, causing the voltage to drop intermittently. The A/C was the first thing to complain. I used a multimeter to check the voltage at the battery while the car was running, and it was fluctuating way too much. Honestly, unless you're comfortable with electrical diagnostics, it might be best to take it to a workshop. They can check the whole charging system and pinpoint the issue.

timcrystal1 (community.author)

Thanks a lot for the insight! I'll check the voltage and connections, but I think you're right; I might be in over my head. I'll probably take it to my local mechanic. It was indeed undervoltage! Apparently the belt tensioner was faulty, causing the belt to slip. The cost was 240€ including a new belt tensioner.

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FORD

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GT