Question about Ford Mustang

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The AC in my 2000 Mustang has stopped working. The compressor doesn't come on so I tried a DIY recharge kit. The low pressure side should be charged to about 45psi, but with the system not working my guage reads 100psi and I am hesitant to add more. What should the pressure of freon be when the AC system is not working? What should be my next step?

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  • Roy Karkosh May 30, 2011

    I jumped the low pressure switch as Chuckster recommended, the compressor started and I got a pressure reading of 10psi which is very low. I added freon and now have cold air.
    Thanks

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  • Master
  • 1,102 Answers

When the compressor is not turning the system will equalize and the high and low side should read the same. You need to make sure that the compressor is in fact getting 12VDC to the clutch. If it is then check the "air gap" between the clutch and the pulley. I am not sure what that spec is. If the gap is too far then it won't "pull in" the clutch. You can also take the low pressure switch and jump the wires to see if the compressor engages. If it does, then check your pressures. If they are okay, your low pressure switch might be bad.

Posted on May 29, 2011

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Best of luck and enjoy your vacation.
Greg

Hopefully this answers your question and you're able to get your AC working again. Best of luck.

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Regards,

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