2006 Ford Mustang my car's A/C

2006 FORD MUSTANG
4.0L • V6 • AUTOMATIC
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A1187796
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  • 5 POSTS
Hey guys, I have a problem with my ac, problem is when I turn my ac on too number 1 it's fine but when I switch to number 2,3,4 it's doesn't blow anymore it's like the number 1 stage still, air is cold though and I had a mechanic check the motor fan, it works good, not sure what the problem could be , I did have an audio system installed the day before that happened , I'm not sure if maybe they messed with the Ac wiring behind my dashboard? Please reply thank you
Sep 22, 2015 at 4:56 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
pull fuses 10 & 12 in smart junction box with key on for 60 seconds then check for a good connection at pic if this doesn't work then have it scanned for codes and have radio install place pay for it.
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Sep 22, 2015 at 5:15 AM
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A1187796
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Sorry don't know much about cars would it be fuse box inside car or the engine one?
Sep 22, 2015 at 6:00 AM
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A1187796
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Ok I tried it, it is working
Sep 22, 2015 at 6:47 AM
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A1187796
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But Ac still not blowing at level 2,3,4
Sep 22, 2015 at 6:48 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
if you have a test light see if power is going to the resistor as you switch the control it will go to different wires. volt meter works too. if still not working then have it scanned for codes because something is screwed up from radio install more than likely.
Sep 22, 2015 at 8:33 AM
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A1187796
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Thank you i'm going to see the installers that did my audio system, and see what they say, then I'll follow up from there, I'm pretty sure they messed with the wiring of the Ac controls? Possible right?
Sep 22, 2015 at 11:49 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
yes or they hooked into the wrong place which is pretty common. Especially since it worked ok prior, could be coincidence bu ti don't think so.
Sep 22, 2015 at 11:41 PM
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