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Ford Explorer AC and Heater Problems

236 messages,  Last post on Oct 28, 2009 at 8:15 AM

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What is this discussion about? Ford Explorer, Heating / Cooling, SUV

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#207 of 236 Re: 2004 Explorer a/c concern - blows cold passenger side & warm on driver side [jay_57] by explorer2004 Jul 03, 2009 (8:57 am)
Replying to: jay_57 (Jun 23, 2009 4:06 pm) I have exactly the same vehicle (2004 Explorer) and exactly the same problem. If anyone can advise how to check or repair the blend door without dismantling the dash, please chime in. Thanks.
#208 of 236 '93 Explorer Blower Intermitant by mohrling Jul 08, 2009 (10:32 am)
Blower only works intermittently. I've replaced resistor package with no success. Next applied a 12volt line directly to blower and it turned on. I'm thinking dash switch? Any other place I may look? Thanks! Replies to this message: mohrling (Jul 11, 2009 7:15 am) air_door_fix (Jul 13, 2009 11:02 am) mohrling (Aug 08, 2009 7:39 am)
#209 of 236 Max AC by mpiac Jul 10, 2009 (7:39 pm)
heatertreater, my AC seems to work in that it will put out cool air, but the Max AC portion does not seem to be working. The air output does not increase and the air does not get cooler over time when Max AC is selected. Do you think your blend door fix will take care of my problem? Replies to this message: air_door_fix (Jul 13, 2009 11:10 am)
#210 of 236 Re: '93 Explorer Blower Intermitant [mohrling] by mohrling Jul 11, 2009 (7:15 am)
Replying to: mohrling (Jul 08, 2009 10:32 am) OK, so how tough is it to pull the switch? Looks as if the dash may have to go? Anyone? Replies to this message: air_door_fix (Jul 13, 2009 11:02 am) mohrling (Aug 08, 2009 7:39 am)
#211 of 236 Re: '93 Explorer Blower Intermitant [mohrling] by air_door_fix Jul 13, 2009 (11:02 am)
Replying to: mohrling (Jul 11, 2009 7:15 am) The fan motor is a high current system and there are known problems with the reliability of the wiring over time. The first suspect is always the resistor pack and you have eliminated that as a source of the problem. At the highest speed(max AC) the resistor pack is taken out of the circuit, allowing the full voltage/current sourcing capability to reach the motor and run it at the max speed. Any resistance degradation in the wiring or connectors will be most obvious at full current and the wiring will heat and increase resistance at max load.   My guess is that you have a bad connector or wiring that has degraded over time and the problem is most evident in full load mode. It won't get better over time and eventually the wires will melt. Check the motor wiring comments on the GC on the www.wjjeeps.com forum for an idea of what can go on with the wiring. I haven't seen reports of the same common problem on the Fords as is apparent on the Jeep, but there's no reason that some systems wouldn't see the same issues.   My suggestion would be to closely inspect the wiring from the motor to the switch, looking for any signs of burns or melted insulation. If it doesn't look pristine, you've found the problem. I'd also inspect all connectors and remove any signs of oxidation by polishing with steel wool or sand paper. The final resolution may be replacing or patching the wiring/connectors. Replies to this message: mohrling (Aug 08, 2009 7:39 am)
#212 of 236 Re: Max AC [mpiac] by air_door_fix Jul 13, 2009 (11:10 am)
Replying to: mpiac (Jul 10, 2009 7:39 pm) Not sure what year model you have and the answer is slightly different for different years. Max AC is just fan full blast, re-circ mode on, blend door closed against the heater core. If each of these is working independently, but not together, there is a possibility of a control malfunction, but that's unlikely. If you can isolate the operation of the three functions above, we can make a better estimation of what's going wrong when all three are activated at once. Also, check my answer on this forum on motor wiring, that could also be involved.
#213 of 236 2003 Ford Explorer AC problem by ryango Jul 19, 2009 (1:26 pm)
When running the AC on my 2003 Ford Explorer there is cool (not cold) air coming from the passenger side vents, and warm air coming from the driver side vents. I have checked the blend door behind the glove box, and it appears to be operating properly, opening and closing when switching from from heat to and ac and when switching from ac to max ac. Any other suggestions on what to check?   PS, the refrigerent has also recently been recharged.
#214 of 236 AC compressor not kicking on by fizzpot Jul 20, 2009 (12:23 pm)
have an 03 ford explorer - air conditioner not working at all - appears the compressor doesn't kick on - what are the causes/solutions I should first address? thanks
#215 of 236 2007 Ford Explorer ACC blows cold & hot by mikerus Jul 23, 2009 (5:00 am)
Have a 2007 Ford Explorer. Automatic AC blows cold trough upper vents and to the right footwell and it goes warm from left footwell. So the warmer my feet the colder air blows in my face. A local Ford dealer says: "That's the way it works". But it never worked this way till July, 17, 2009. Does anyone now what the problem is? Need help. Please.
#216 of 236 1999 ford explorer eddie baur by taleb Aug 05, 2009 (10:43 am)
i have a 99 explorer, my heater and a/c is not blowing any air at all, it just stop working 3 days ago. can u help me? i can hear a clicking sound on the right side, under the hood. i can turn the switch on for a/c and the heater, just no air blowing out of vents at all. please help me. i checked all fuses and they are ok.

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