2010-2014 Mustang Information on The S197 {GenII}

Weird AC issue

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Old Jun 20, 2017 | 04:29 PM
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05PRMTX's Avatar
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From: Houston, TX
Weird AC issue

So I've noticed lately that one side of the car is much cooler than the other. If I stick my hand over the AC vents the Air coming out is MUCH cooler on the passenger side than on the drivers side. Has the base controls, so no dual zone climate control....What gives?
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Old Jun 20, 2017 | 07:12 PM
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Ugh I hope you don't have what I did...but the symptoms are identical. Bad evaporator core, which is a $2,000 job at the dealer. $600 part plus 10 hours labor. Dealer diagnosed it by putting green leak detector dye in the A/C system which showed up quickly on my garage floor from the leak.
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Old Jun 20, 2017 | 10:19 PM
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From: Southern Al
Originally Posted by 05PRMTX
So I've noticed lately that one side of the car is much cooler than the other. If I stick my hand over the AC vents the Air coming out is MUCH cooler on the passenger side than on the drivers side. Has the base controls, so no dual zone climate control....What gives?

Sounds like a blender issue. The air blowing out of the vents on max should be around 20 degrees.
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Old Jun 22, 2017 | 12:16 PM
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Originally Posted by kylerohde
Ugh I hope you don't have what I did...but the symptoms are identical. Bad evaporator core, which is a $2,000 job at the dealer. $600 part plus 10 hours labor. Dealer diagnosed it by putting green leak detector dye in the A/C system which showed up quickly on my garage floor from the leak.
Geeze, yeah I hope not either.....That is not somthing I want to fork over 2K for
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Old Jun 22, 2017 | 12:26 PM
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While I'd lean towards a blend door issue, someone on this forum had a similar issue recently and it was just low on refrigerant.

Of course if it is "just low", the question is why. Is there a leak? And if so, is it simply a line, schrader valve, or the expensive evaporator.

Last edited by SpectreH; Jun 22, 2017 at 12:29 PM.
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Old Jun 22, 2017 | 12:31 PM
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From: Houston, TX
Originally Posted by TheReaper
Sounds like a blender issue. The air blowing out of the vents on max should be around 20 degrees.
Thanks, I'll have to check the temps. All the vents on the Passenger side feel ice cold like they should. The one son the drivers side take longer to get cool and don't get nearly as cold.
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Old Jun 23, 2017 | 04:14 AM
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Fords are well know for the door blend actuator going bad. Do you hear a few clicking sounds when you first start the motor? I just replaced my Mom's 2010 Taurus's with just 7,200 miles on it
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Old Jun 23, 2017 | 11:00 AM
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From: Houston, TX
Originally Posted by David Young
Fords are well know for the door blend actuator going bad. Do you hear a few clicking sounds when you first start the motor? I just replaced my Mom's 2010 Taurus's with just 7,200 miles on it
I actually had the actuator problem a few months ago and got that taken care of. I was getting the clicking and it would lock up trying to open certain vents. So that issue has been resolved. This is definitely something else.
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Old Jun 23, 2017 | 11:03 AM
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Originally Posted by SpectreH
While I'd lean towards a blend door issue, someone on this forum had a similar issue recently and it was just low on refrigerant.

Of course if it is "just low", the question is why. Is there a leak? And if so, is it simply a line, schrader valve, or the expensive evaporator.
Yeah, I am leaning towards a leaking issue as I already had the blend door issue taken care of. I will probably grab the charging kit from autozone and see how that goes.
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