heater/blower/Fan speed switch?
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Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
heater/blower/Fan speed switch?
How do you replace the blower/heater speed switch on these trucks? I'm trying to do it on my 77 F100 w/ factory A/C.
I took everything apart to get to it, but I could NOT get it off. I don't know if there is a secret clip or you need super man strength to take it off. I pulled so hard I thought something was going to break so I stoped.
Any help would be greatly appreciated.
I took everything apart to get to it, but I could NOT get it off. I don't know if there is a secret clip or you need super man strength to take it off. I pulled so hard I thought something was going to break so I stoped.
Any help would be greatly appreciated.
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Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
I already don't remember, but I know for sure there was at least one. I will look better for the other one tomorrow. Thanks for the diagram.
Any thing else tricky to it? Clips on the port that attatches to it needs to be removed?
Any thing else tricky to it? Clips on the port that attatches to it needs to be removed?
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Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
Mine has one very small hex head that connects the switch.
I just changed it(switch), and my fan still isn't blowing.
I can hear the little blower motor and so can my mechanic(who was trained on this model truck, and has never steared me wrong before).
The problem has to be something else.
It's not the switch, fuses, or the blower motor, so what else can it be?
Mil1ion, if you could, please explain what I need to do, because the 100 degree heat and 100% humidity is KILLING me. Relay, wire? What and where?
I just changed it(switch), and my fan still isn't blowing.
I can hear the little blower motor and so can my mechanic(who was trained on this model truck, and has never steared me wrong before).
The problem has to be something else.
It's not the switch, fuses, or the blower motor, so what else can it be?
Mil1ion, if you could, please explain what I need to do, because the 100 degree heat and 100% humidity is KILLING me. Relay, wire? What and where?
New User
Joined: Jan 2008
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Likes: 24
If the motor is turning it should be blowing.
have you checked all the vacuum actuators to open the AC doors ?
have you checked all the vacuum actuators to open the AC doors ?
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Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
I hear something that sounds like it's turning right where the blower motor is, it's not to loud, but it's there. I didn't check the vacuum actuators to open the AC doors, how would I do that?
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Thread Starter
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Post Fiend
Joined: Mar 2005
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Likes: 5
From: Louisiana
I thought it might of had something to do with that, but I wasn't sure....
Either way, I checked, and that's working perfectly.
What are my other options? (even if for some reason the blower motor isn't working, it could be that and what else(so I can change everything to eliminate all possiblities))?
Thanks for the help so far, I really appreciate the quick replies.
Either way, I checked, and that's working perfectly.
What are my other options? (even if for some reason the blower motor isn't working, it could be that and what else(so I can change everything to eliminate all possiblities))?
Thanks for the help so far, I really appreciate the quick replies.
