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Ford Expedition Air Conditioning Questions

119 messages,  Last post on Oct 22, 2009 at 1:04 AM

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What is this discussion about? Ford Expedition, SUV


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#60 of 119
Re: 2000 expedition AC [bart175] by expedition3
Jun 18, 2008 (6:32 am)
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Replying to: bart175 (Jun 08, 2008 4:49 pm)

Look in the back of the engine compartment near the accumulator (the big cylindrical metal object attached to the suction line near the dash panel). It might even be on the accumulator. Let us know if you find the port and exactly where it is.
#61 of 119
Re: Front AC Control Problem [methridge] by pinkkeith
Jun 18, 2008 (9:32 am)
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Replying to: methridge (Nov 11, 2007 4:20 pm)

I have the same problem w/ 02 Explorer, did you ever find out the cause/remedy?
#62 of 119
Re: Front AC Control Problem [pinkkeith] by expedition3
Jun 21, 2008 (2:17 pm)
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Replying to: pinkkeith (Jun 18, 2008 9:32 am)

If it is stuck in defrost you probably have a loss of vacuum to the vacuum motors due to a pinched, damaged, or disconnected vacuum line. Find the vacuum motors, check for vacuum in the different control modes, and trace the problem back.
#63 of 119
`97 Front AC issue - help please by airconman
Jun 24, 2008 (5:53 pm)
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I've read many of the threads here and believe I have a problem with the temperature blend control. The front vents only blow hot air when in AC mode with full cold dialed on the temp dial. The back vents blow cold air (when in AC on cold) and hot air (when temp turned to heat) like they are supposed too. I know I need to take the dash and console off to do the full repair.
 
My question is - is there a simple temporary quick fix to get the temp blend valve over to cold A/C for the time being until I can go through the dash removal hassle? Thanks for any replies!
Great site btw -
#64 of 119
Re: `97 Front AC issue - help please [airconman] by airconman
Jun 26, 2008 (6:35 am)
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Replying to: airconman (Jun 24, 2008 5:53 pm)

Okay, I found a quick temporary fix to share in case others are in a similar bind. Given we are in the hi 80's, low 90s most days I need the air con blowing in the front (not heat).
 
I was able to get the temperature blend door to shift over to blow cold air. I turned the ignition to on, but did not start the car. I closed the front vents, except one. Then I took a shop vac and reversed the hose to the exhaust position to blow air, and I put the hose up to the one open air vent. Then I moved the temperature dial back and forth a bit and finally left it on full cold. Voila, when I started the car, crisp cold air was coming out of the front air con. So the temperature blend door was somehow shifted to the cold position. Not sure long it will stay this way. Hopefully until fall, or until I can remove the dash.
#65 of 119
Re: `97 Front AC issue - help please [airconman] by mrpatryan
Jun 26, 2008 (6:22 pm)
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Replying to: airconman (Jun 26, 2008 6:35 am)

I tried the trick to no avail. Maybe I missed a detail or two, so here are the questions I have airconman.
 
- When you do the trick with the shop vac do you have the selection dial to AC Max, or Vent or Defrost or what?
 
- Do you have the fan dial turned on when you do this?
 
Also, a couple details about my symptoms. My AC is blowing non-cold in front and back. However when I hook up a can of R-134 with the dial gauge on it, it reads to the top of the "Full" category before I add any. So I start the engine with the gauge attached and turn the AC onto max and fan on High and the compressor kicks on ever few seconds and the the gauge dials down to the bottom of the "Full" range then slides back to the top of the "Full" range and the compressor cycles again. The gauge never dips into the "Low" range.
 
This looks to me like I have plenty of R-134 in my system and some other issue is causing my AC to not chill. Maybe I have a vent door issue too?
#66 of 119
Re: 2000 expedition AC [expedition3] by parked
Jun 27, 2008 (5:02 am)
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Replying to: expedition3 (Jun 18, 2008 6:32 am)

It is between the battery and the engine on the condenser on the firewall. There is a computer component mounted directly above it. There are hoses and wiring covering the inlet. Hope this helps.
#67 of 119
Re: `97 Front AC issue - help please [mrpatryan] by airconman
Jun 27, 2008 (9:30 am)
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Replying to: mrpatryan (Jun 26, 2008 6:22 pm)

With the shop vac trick, I had the selection dial set to AC. Make sure the ignition switch is on. The fan is set to the lowest setting. With the shop vac blowing in the vent I turned the temp setting dial back and forth from hot to cold and back a couple of times, then left it on full cold.
 
I am not an expert and don't know much about the AC system. However, given that you are getting the same thing out of the front and back vents suggest it may not be the temperature blend door that is the culprit. There is temp blend door in front and another one in back that work independently. Unlikely they went out at the same time.
Good luck
#68 of 119
A/C not working right by tom183
Jun 27, 2008 (1:54 pm)
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I had 3 problem with my air controls in one day. My air speed control only works on low and high. The A/C only works on max A/C but not well. And last The A/C on any other setting blows hot air. A/C is charged was At 25 I upped the charge to 40 to see if that would help, But it didn't
Thanks
#69 of 119
Re: 2000 expedition AC [bart175] by tom183
Jun 27, 2008 (1:59 pm)
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Replying to: bart175 (Jun 08, 2008 4:49 pm)

I just charged my 03 mine is just to the left and down about 1 foot. mine is on the pass. side and I'm leaning in on that side so left and down just follow the line towards the rear of the suv..
Good luck

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