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Old 07-23-2011, 04:47 PM
2009Exp 2009Exp is offline
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Question Weird AC Noise Issue

I am having a weird issue with my Air Conditioning making noise.

My truck is a 2009 Ford Expediton XLT with 22,000 miles.

When you turn the key to the on position, it makes a tapping noise. This sometimes continues for a while if its on all the way cold. A YouTube video is below of the issue. If you adjust the temperature from all the way cold, the noise stops. However, if you put it back on all cold, it starts up again.

Also, it just had the 20,000 mile service done. It started doing it after that.

‪Ford expedition 2009 weird problem‬‏ - YouTube

Do you guys have any idea what is causing this? Would I be able to fix it myself? Thanks.
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Old 07-24-2011, 11:23 AM
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I have no definite answer, but I'd check the belts to see if there's anything too loose or too tight (binding up?) and maybe see if there's a prob with Freon - is is getting cold enough?

Do you know if they serviced the AC? Wondering if something was left un-done...
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Old 07-25-2011, 11:38 AM
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Might be the vent door motor. Does it make the same sound with the re-circ button not lit?
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Old 07-26-2011, 05:19 AM
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I going to say that's the motor on the blend door. The blend door is notorious for sticking/groaning/moaning and just flat out not working.

That sounds like the pawls on the motor clicking through the gears. How cold is the air coming out of the system?
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Old 07-26-2011, 10:54 AM
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My vote is blend door motor gears are stripped. It's under warranty so take it in.
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