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Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

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MrBugatti
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Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by MrBugatti » Sat Aug 24, 2019 6:34 am

Ok I've been ripping my hair out trying to figure out what the problem is with the A/C on the passenger side. I used a thermometer to get an Idea of the temperature difference the ambient temperature was 68, with the A/C on 60 the passenger side was showing 70°-62° if the compressor stayed on long enough. The drivers side on the other hand is coming out at like 44°. These were the temps after changing the passenger side blend door because it was making the "hunt" noises described by FordTechMakuloco and obviously replacing the blend door didn't do anything. I might have to bring it to the dealer to have them calibrate it however I don't think that's the problem because the hot side worked perfectly. So if anyone has run into this before or has any suggestions I would really appreciate it.
Last edited by MrBugatti on Sun Aug 25, 2019 4:57 pm, edited 1 time in total.

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mmsstar
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Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by mmsstar » Sat Aug 24, 2019 10:58 pm

Which BDA did you replace?
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

MrBugatti
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Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by MrBugatti » Sun Aug 25, 2019 5:16 am

Passenger side

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mmsstar
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Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by mmsstar » Sun Aug 25, 2019 4:46 pm

There should be 2 on the passenger side in the dual zone system
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

MrBugatti
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Joined: Mon Jul 30, 2018 3:42 pm

Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by MrBugatti » Sun Aug 25, 2019 4:56 pm

I looked in the repair manual and it showed the driver's side blend door motor on the driver side along with the zone door motor and on the passenger side there's the passenger side blend door motor and the re circulation door motor.

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mmsstar
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Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by mmsstar » Mon Aug 26, 2019 5:56 am

Yes, the recirc is the easy one on the blower housing. The passenger BDA is the hard one.
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

MrBugatti
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Posts: 34
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Re: Ford Five Hundred Passenger side a/c warm (Dual zone hvac)

Post by MrBugatti » Wed Aug 28, 2019 12:22 pm

I just don't understand why it's still coming out ambient after replacing it unless the door is physically broken.

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