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No heater fan ideas

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Oledirtypearl86, Feb 11, 2019.

  1. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    So today I got a free 1982 ford bronco that is a in pretty nice condition and been well maintained anyways everything works except the heater fan I checked the fuse and that is good I really haven't had a chance to look to much as it was dark but would like a good starting point maby someone knows a well known weak link or something IMG_20190211_185558.jpg IMG_20190211_185628.jpg IMG_20190211_185621.jpg
     
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  2. DrCharles

    DrCharles Full Access Member

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    The heater fan motor is a well known failure point... I think I've replaced it on every Ford truck I've owned ;) Does that Bronco have the same blower location as the F-trucks (sticking out from the heater box under the hood)? If so it takes less than 30 minutes to replace. Be careful not to crack the blower wheel when prying it off the old motor.
     
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  3. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    To be honest I'm not sure where it is I literally just got it home drove it home lol
     
  4. chillman88

    chillman88 Supporting Member Supporting Member

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    Always wanted a bullnose bronco! Nice catch!

    I know when I got my truck some moron had cut the wire behind the glove box. As old as it is, it might very well just need a new blower though.

    Does it work only on Hi or not at all?
     
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  5. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    It dosent work at all but I can hear the vent door move and the hiss of the vacume as I change from the different modes also the AC pump kicked on when I switched to ac :) an I like it it's got a strait 6 with a 4 speed :Thumbs Up bit I will say the wife was pretty angry till I told her it was free
     
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  6. YJMike92

    YJMike92 Full Access Member

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    The first place to go is the blower motor connector. Check for ground and power with the heat/air control turned on. if you have power and ground it's most likely the blower motor. A voltmeter or test light would work. Using something like a headlight bulb to test would ensure the circuit can carry the current needed to run a blower motor.
     
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  7. riphip

    riphip Supporting Member Supporting Member

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    The fan box can have leaves or rodent nest in it stopping blower from turning. Blower switch is also a weak point as sometimes it will overheat and have no high speed.

    GREAT DEAL & LOOKS GOOOOOD:Thumbs Up:Thumbs Up
     
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  8. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Well I had to run to town get some milk and such for the kind day and decided to take it the 7 miles to town on the way the blower started blowing :) so that leads me to believe .loose plug or ground an man it runs good the previous owner said it has a million miles but the interior and the way it runs says different the only thing that I need to address is the steering it's a bit loose kinda like herding kittens keeping it in a straight line but all an all :Thumbs Up I like it
     
  9. DrCharles

    DrCharles Full Access Member

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    A lot of those DC brush motors will occasionally work for a while when persuaded by a bump. The brushes, bearings or both are on their last legs. Check the connections, sure, but my money says it's the fan motor itself.
     
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  10. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    True I didn't even think of that
     
  11. Cubey

    Cubey Full Access Member

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    My E350's blower works when it feels like it. Having wiper electrical issues too. :(
     
  12. Oledirtypearl86

    Oledirtypearl86 Full Access Member

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    Look into the selector switch my f350 was acting up turns out the switch was toast
     
  13. RDieselKid84

    RDieselKid84 Registered User

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    Take the blower out and check inside the blower housing by the A/C coils for leaves and things as said before. Take the blower resistor out and check it also, there will be a lot of trash in the bottom of the box if it hasn't been cleaned in awhile. All this comes from the vents on the cowlpanel, the blower will be on the pasenger side firewall. Like they said the blower motor probably is bad if it's been there over five years, good luck. Also use a vacuum cleaner to get all the trash out.
     
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  14. david85

    david85 Full Access Member

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    Congrats on the score!

    I was going to suggest turning on the fan, then gently pounding the heater ducting under the hood with a fist. Looks like your drive into town did the trick. Pretty much all the electrical connections on these trucks are spade style which is prone to letting crud, moisture and corrosion in. The typical failure point is the resistor element, which is right next to the blower motor. In many cases it can be cleaned up and reused. If that doesn't work, new ones are still available at most parts stores.

    As for the motor itself, I wouldn't be surprised if it was fine after running for a while. There could be a small amount of scale on the commutator from prolonged lack of use. It will quickly get scraped off once the brushes start sliding against it.
     
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