Question about 1989 Ford Mustang

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A/c problems

Compressor will not start and the a\c and heat button seam to not control the different from window setting and floor setting could it be the control switch or the a\c unit is bad I am working on a ford mustang 1989 5.0

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  • pthornton345 May 22, 2009

    Do I use the port on the compressor to install freon or the port attached to the tubing

  • pthornton345 May 23, 2009

    Thanks for the help working perfect

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Try this website for fix and trouble shoot heating & A/C www.automedia.com and i hope you find the help you need Michigan Man.and sometime when the freon is low the compressor will not start you may have to put on a adapter and put in some 134-A

Posted on May 22, 2009

  • edgar walker
    edgar walker May 22, 2009

    use the port on the low side and it is near the tank close to the firewall you have to get an adapter and a hose for the 134A check at Walmart or Autozone and there you can see what a whole charge kit is like look under your hood do the math so you do not over charge it

  • edgar walker
    edgar walker May 24, 2009

    i am glad i was able to help you and also to let you know all of Michigan Man Cars are fords if there is anything i can help you with i do the best that i can take care of yourself Michigan Man.

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Why is my AC compressor running when my temperature control is set to heat, fan control set to 2, AC control switch off and air flow control set for floor?


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