Coldheartedcar Posted January 14, 2015 Share Posted January 14, 2015 Hello forum, trying to find some guidance on resolving the issue I am having with my used fusion with roughly 77k miles. A/C blows cold and all four blower settings are working fine. When I turn the a/c on and off I can hear the blend door opening and closing, but when I turn the temp dial to heater I hear nothing at all. I've leaked the coolant to ensure no air bubbles and it the coolant is at proper levels. I also have heat going in and out of the heater core. I made the mistake of taking the car to Firestone and paid 130 dollars so they could tell me I need to take it to the dealer. They said the dash would have to be removed, but weren't able to give me an specific information. Hoping a can try to repair myself... Any help or suggestions would be greatly appreciated. I thought I could make it through a South texas winter, but my feet are freezing! Please help. Thanks ! 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 14, 2015 Author Share Posted January 14, 2015 Sorry for choppy post. Using phone... 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 14, 2015 Share Posted January 14, 2015 Sure sounds like the blend door isn't opening for heat, if you have heat and coolant flow through the heater core. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 14, 2015 Author Share Posted January 14, 2015 So I need to look at replacing the actuator? I saw a post on an 06 replacement I think. Would mine be found under steering wheel or through glove box? Thanks! 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 14, 2015 Share Posted January 14, 2015 No idea, but that sounds right. It could also be something else completely. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 14, 2015 Author Share Posted January 14, 2015 (edited) Appreciate it! Additional opinions welcomed! Edited January 14, 2015 by Coldheartedcar 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 14, 2015 Share Posted January 14, 2015 Additional opinions welcomed! You're ugly, too. Sorry. Old joke. :) 1 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 14, 2015 Author Share Posted January 14, 2015 Hehehehe... Needing a good line of sight for this weekend. Need to tackle this ASAP. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 16, 2015 Author Share Posted January 16, 2015 Long story shirt..... I pull off the piece of dash that is below the steering wheel. As I was looking for the blend door actuator, I noticed a plug that was unplugged.... voila! - Heat. Today was much hotter, and when I crancked on the A/C - it stayed hot! I guess that was why it was unplugged in the first place. Any idea what exactly needs to be repaired, and if it is something I can handle myself? 0 Quote Link to comment Share on other sites More sharing options...
thefoeyouknow Posted January 17, 2015 Share Posted January 17, 2015 First thing to try is to disconnect the battery long enough to have a cup of coffee and a piss. Reconnect, retest. The HVAC module like to glitch out this way. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 17, 2015 Author Share Posted January 17, 2015 Yeah I tried that that. No luck. I figured i could just unplug the connecter when it was time to go back to a/c. When I unplugged it I did get a/c, but when I reconnected it I couldn't get the heat back. Took a lot of messing with the controls/and random unplugging/plugging aswell as disconnecting the battery for 10 minutes to get the hear back, but now no a/c again... 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 17, 2015 Author Share Posted January 17, 2015 So I removed the temp blend door actuator today. I noticed that it would only turn the gears in one direction and would not turn in reverse. I was able to turn the blend door by hand with the car off to change the temp from hot to cold... however, I was not able to turn while the blend door while the car was running. I ordered a new actuator. Does it sound like perhaps a faulty actuator was the problem? 0 Quote Link to comment Share on other sites More sharing options...
thefoeyouknow Posted January 19, 2015 Share Posted January 19, 2015 A door motor failure isn't terribly common on these, but I need 2 hands to count how many I've done. Usually these will have a position sensor failure in the unit. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 22, 2015 Author Share Posted January 22, 2015 (edited) Replaced the actuator.... This did not solve anything. Still only getting a/c. Edited January 22, 2015 by Coldheartedcar 0 Quote Link to comment Share on other sites More sharing options...
thefoeyouknow Posted January 22, 2015 Share Posted January 22, 2015 You're going to want someone with an IDS to read the datastream on the HVAC module to see what the evaporator temp sensor is reading. Typically when these fail, you lose AC, not heat, that's because they go open circuit, but if one were to short directly across (which I've never actually seen), it would cause the HVAC module to think the outlet temp was 255 degrees F, and under those conditions you may lose heat. I've never seen that particular failure mode, but that's the concept. In either case, you need a scanner that can read more than just the engine computer. TL:DR, you need a pro. Sorry. 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 22, 2015 Share Posted January 22, 2015 It's a fusion S so I assumed it was a manual control unit. 0 Quote Link to comment Share on other sites More sharing options...
thefoeyouknow Posted January 22, 2015 Share Posted January 22, 2015 Irrelevant. All Fusion have an HVAC module, and all Fusion have evap temp sensor. 0 Quote Link to comment Share on other sites More sharing options...
Coldheartedcar Posted January 23, 2015 Author Share Posted January 23, 2015 So it occurred to me that maybe now that I replaced the actuator, that it may be a good time to disconnect the battery again for 15 min and let the system reboot or whatever. This solved the issue. Car temp is now adjusting from cold to hot depending on setting. 0 Quote Link to comment Share on other sites More sharing options...
propwash Posted January 23, 2015 Share Posted January 23, 2015 (edited) I have a question regarding disconnecting the battery for a few minutes. It seems from reading this forum that disconnecting the battery does help to fix a few different electrical glitches. On my last car, when I disconnected the battery, I would lose my radio station presets and also the trip odometers would zero out. Does anyone know if that also happens on the Fusion? I have a 2012 SEL. If I ever have to disconnect the battery, I would like to know if I will lose any other information. The radio presets are no big deal, because I have them written down anyway, but I would like to know if I'm going to lose any other information when I have to disconnect the battery. Thanks. Edited January 23, 2015 by propwash 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 23, 2015 Share Posted January 23, 2015 No you won't lose the presets. 0 Quote Link to comment Share on other sites More sharing options...
propwash Posted January 23, 2015 Share Posted January 23, 2015 Thanks Do you know if I will lose the trip odometer settings? 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 23, 2015 Share Posted January 23, 2015 (edited) I don't think so but I'm not 100% sure. You can get a device that uses a 9V battery into the obd-II port that maintains power while you change it if you're that worried about it. Edited January 23, 2015 by akirby 0 Quote Link to comment Share on other sites More sharing options...
propwash Posted January 24, 2015 Share Posted January 24, 2015 I didn't know that they made them to fit into the OBD-II port. I tried one of those things once that used a 9 volt battery and plugged into the cigarette lighter receptacle. Even though my car's lighter receptacle was hot with the ignition switched off (not all cars are wired that way), it didn't work. I lost all my settings in both the radio and trip odometers. It's really no big deal, but if you want to use those figures to calculate mileage for business expenses, it's a bit of a pain to write down the readings before you disconnect the battery. 0 Quote Link to comment Share on other sites More sharing options...
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