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  #13  
Old 11-07-2010, 01:36 AM
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Re: Blower Motor issue - it's friggen cold! Help!

I did hear doors moving but I didn't know which was which. How do you tell?
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  #14  
Old 11-07-2010, 08:07 AM
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Re: Blower Motor issue - it's friggen cold! Help!

By just turning the left temperature set knob, you will only move the drivers side blend door. And with the right temp set knob, obviously only the passenger side blend door. They donīt make a lot of noise, but you can hear them clearly when the engine is off, ignition in on and the blower in manual low.
Checked yesterday on my car, and the amount of air coming from the left and center air outlets is far more (by feel) then from the passengers side outlets with the same temperature selected, so this seems to be normal. Its a jeep thing
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Old 11-07-2010, 11:00 AM
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Re: Blower Motor issue - it's friggen cold! Help!

Interesting. Ok, I'll look into this a little further this afternoon. Going to take a break from the Jeep for a couple hrs and wash the vette. That car is a disaster right now. Covered in mud and leaves, looks like a jeep should! lol

So Frango, if this is a blend door issue, why I'm not getting heat on the drivers side and the recalibration did not fix it.......I'm going to be having to look at the actuator potentially. Any way to test that manually?

So to confirm:

the centre vents - drivers side is strong but blows cold
- Pass side, is weak and blows cold

Drivers side left vent - strong and cold
Pass side left vent - weak and warm
Pass side right vent - weak and warm

Drivers side foot well - weak and cold
Passenger side foot well - weak and warm

Drivers side defrost - strong and cold
Pass side defrost - weak and warm

ok, drivers side temp blend door moves very little, pass side seems to mover more (makes more noise). you can adjust temp on pass side even tho flow is weak, cant adjust temp on drivers side but blows strong.
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Old 11-07-2010, 02:45 PM
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Re: Blower Motor issue - it's friggen cold! Help!

Owing to the fact that you can hear the drivers side blend door moving a little only, is probably the reason of your problem of no heat. Or the actuator gets stuck, or the door is stuck at a certain position. Just remove the glove box and you can see the drivers side blend door actuator. Remove the actuator and see if the blend door can be moved easily and that it doesn't bind somewhere. If this is ok, most probably the problem is the blend door actuator. You can control the blend door actuator by entering the actuator test mode and use test number 32. You can then move the actuator with the right temperature select knob.
Regarding the flow, on mine there is also a difference in flow between drivers side and passengers side, i think this is normal. Maybe some others can chime in and tell how the flow is in their cars?
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Old 11-09-2010, 08:48 AM
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Re: Blower Motor issue - it's friggen cold! Help!

I will defintiely look further into this asap. Now that the work week is here again and the clocks have turned back its gonna be tough to get at it before it gets cold and dark during the week. Thanks!
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Old 11-11-2010, 06:04 PM
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Re: Blower Motor issue - it's friggen cold! Help!

ok ok, had no time to look into this again but did drive the jeep work today. On the way home I had the blower motor off and I heard what sounded like a blend door or a recirc door move. That little tapping noise has become familiar to me now. So I flip on the blower motor and all though flow hasnt increased or decreased I suddenly started to feel a little warmth out of the vents that were blowing straight cool air before. Could the blend doors have fixed themselves? Not totally but perhaps partially.

Sooooo, I lowered the temp on the pass side and cranked it on the drivers side. I got cool air. I left it cranked on the drivers side and then cranked up the heat on the pass side and got hot air on pass side (low flow) and warm air on the drivers side (high flow). Its not enough to melt an ice cube or enough to keep your tender tootsies from turning into popsicles on a frigid day but its a start!

I'm wondering if may be the actuator and not the doors then. How do I test the actuator? Anyone know?
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Old 11-12-2010, 11:18 PM
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Re: Blower Motor issue - it's friggen cold! Help!

That would be great Giggity, if the blend doors could repair themselves. The drivers side blend door actuator you can easily access by removing the glove box. Then remove the actuator and move the blend door by hand to see how it works. Seems that many times a plastic end stop breaks off, permitting a more then normal travel of the actuator. Or even the blend door hinge pin breaks. Never saw it from closeby, but seems to be a fragile construction.
You can also look at the actuator itself and see if it moves when you rotate the temperature select knob. You can also access the actuator test mode as i had discribed in one of the replys above and use code 32. You can then step by step move the actuator with the right temp control knob.
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Old 11-13-2010, 08:29 AM
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Re: Blower Motor issue - it's friggen cold! Help!

so going to do this today especially since I didnt sleep in this saturday.
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Old 11-15-2010, 06:46 AM
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Re: Blower Motor issue - it's friggen cold! Help!

So I pulled the actuator from the behind the glove and was able to turn the blend doors by hand. Theres resistance there at times, and others it feels like your turning the doors but no resistance is felt. I managed to turn them enough to feel heat, nice hot heat from the drivers side so I put the actuator in the glove box and shut the glove. Done. For now any way. lol

I have heat which is my main thing, but i noticed on Sunday I had no heat again and had to play with the blend doors till I got it right. I wonder why the doors would move on their own? Maybe they are broken? I dont see how they would move with out the actuator unless they are broken?
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Old 11-15-2010, 11:30 AM
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Re: Blower Motor issue - it's friggen cold! Help!

Here's what I did for a temporary fix for the winter:

I dropped the glove box and removed (unscrewed and disconnected) the actuator. I cut a small inspection hole by where the door is. Then, I propped up the door and drilled a long screw above the hole so that the door rests on the nail, leaving the heat position permanently open. It's not ideal since I don't have any cooling, but whenever I decide to either swap out a new door or decide I need cooling, I'll just drop the glove box and remove the screw. Either way, I think heating is more important than cooling. Whenever I'm warm, I can just open my windows and drive fast. When I'm cold, I can't do anything about it haha.

Let me know if you have any questions!
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Old 11-15-2010, 04:27 PM
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Re: Blower Motor issue - it's friggen cold! Help!

I agree, warm is better than cold. And since I mainly drive the Jeep in the winter only thats all that really matters to me. I just hope this works for the duration of the winter cause its getting too cold out to spend a good amount of time outdoors trying to fix this comfortably and I hate to throw my money away to a mechanic when I know I'm more than capable. Thanks guys! I'll keep you all in the loop if things should change.
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