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E-body A/C control troubleshoot now Actuator Repair/Replace
#2684961
08/06/19 01:11 PM
08/06/19 01:11 PM
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Joined: Mar 2005
Posts: 403 Colorado front range
BcudaChris
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OP
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Joined: Mar 2005
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Colorado front range
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Hey guys,
Not too long ago I rebuilt my A/C box as part of a larger project. Now everything is up and running and it blows ice cold.
Only problems is I think I swapped a couple of vac lines on the box.
When in the "Off" position, I get cowl air coming through the AC ducts like a vent The "Max A/C" and "A/C" button functions are reversed - A/C setting blows recirc air and the reverse. "Defrost" and "Heat" seem fine, but I haven't checked if they are pulling fresh or recirc air
I believe I just have the fresh air door vac lines swaped. I was careful to number them with tape and take pictures on disassembly, but I clearly didn't get something right on reassembly.
Anybody with knowledge of these things able to confirm my conclusion from troubleshooting? and/or point me in the right direction?
Thanks Chris
Last edited by BcudaChris; 08/22/19 04:26 PM. Reason: Tweak title
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Re: E-body A/C control troubleshooting
[Re: BDW]
#2685303
08/07/19 11:37 AM
08/07/19 11:37 AM
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Joined: Mar 2005
Posts: 403 Colorado front range
BcudaChris
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Thanks for taking the time guys, Pretty sure the service manual has a diagram for all the vacuum line connections. I took a look at the shop manual and the handy-dandy troubleshooting chart even lists my symptoms as fresh air door actuator lines reversed. Hopefully I can get at it without having to take the glove box out. Did you have your 5 button pushbutton switch out? It's easy to put it in upside down. This would make the off position become defrost and blow through the upper vent. Not this time I'll post back once I've swapped the fresh air door lines.
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Re: E-body A/C control troubleshooting
[Re: BcudaChris]
#2690118
08/21/19 07:57 PM
08/21/19 07:57 PM
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Joined: Mar 2005
Posts: 403 Colorado front range
BcudaChris
OP
mopar
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OP
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Ok, so switch and source check valve replaced. Everything worked great for a couple of days. Now the close side of the fresh air door actuator and the heat side of the heat/AC actuator aren't able to work at all without assistance. If you start manually actuating the doors, they will finish the job for you. The fresh air door was known to be iffy (hissing and took a long time to actuate) but the heat/ac actuator thing is new.
Anybody know how to fix these things or know of a vendor that sells or repairs them?
Also, is anyone with a parts catalog able to post p/n's for the ac box vacuum actuators? or direct me to where I can find the part numbers?
Thanks.
Last edited by BcudaChris; 08/22/19 04:28 PM. Reason: Add pn question
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Re: E-body A/C control troubleshooting
[Re: Sixpak]
#2690713
08/23/19 06:35 PM
08/23/19 06:35 PM
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Joined: May 2019
Posts: 6,279 nowhere
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Re: E-body A/C control troubleshooting
[Re: BcudaChris]
#2697266
09/13/19 05:55 PM
09/13/19 05:55 PM
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Joined: May 2019
Posts: 6,279 nowhere
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The "sunvisor" ones are called push on shaft retainers, the "hat" ones are are called push on caps. Just in case you ever need to ask for any at the hardware store. Online source if needed.
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