99 Expy blower motor resistor (Full Version)

Ford >> Ford Trucks, Ford Vans & Ford SUV's >> Ford Expedition

99 Expy blower motor resistor

  

bkjints -> 99 Expy blower motor resistor (5/2/2008 6:25:01 AM)

My 99 Expedition's front fan only works on high.  From the research I've done, it looks like I'll need to replace to blower motor resistor.  Unfortunately, I haven't the slightest idea what it looks like or where I can find it on my vehicle.  Can anyone help?

Thanks!

  
Hayapower -> RE: 99 Expy blower motor resistor (5/2/2008 10:50:29 AM)

Manaul temp controls, or EATC (electronic automatic temp control) ?  The manual climate control will have a blower motor resistor, and the EATC will have a fan speed controller... Mounted in close to the same area (depending on which system you have) only the resistor optioned would be installed into the heat A/C plenium chamber, and the EATC fan controller would be mounted external to the chamber..

bkjints -> RE: 99 Expy blower motor resistor (5/2/2008 11:08:55 AM)

Hayapower, thanks.  It's a manual system.  I've already replaced the controller (the temp controller was very hard to turn, so it had to be replaced anyway) 

I think I found the blower motor - mounted way up underneath the glove box.  Could you describe where the resistor is mounted?

Bob

Hayapower -> RE: 99 Expy blower motor resistor (5/2/2008 12:46:49 PM)

The EATC optioned units have a fan/blower 'speed controller' (a module) not the same as your temp control/fan selection assembly.. The blower resistor will be mounted right next to the blower motor.. When you remove it, look at the coils/windings and you'll see a small 'diode' looking bullet shaped unit bridging the terminals.. Thats the thermal limiter and most times they burn out internal.. Use a test lead (or wire) and clip it to both the in/out of the thermal unit.. You should have all your fan speeds back.. Do replace the unit though if it proves to be bad..

[image]local://upfiles/6756/0B230013186A411F9FC3A8F7EA508EC7.gif[/image]

bkjints -> RE: 99 Expy blower motor resistor (5/5/2008 6:11:04 AM)

Hayapower, thanks again.  Glad you included the picture because I was not sure what I was looking for.  I was able to find it - with a mirror - and it needed to be replaced.  Got a new one from my local Ford dealer and the job took all of 15 minutes.  

  

Page: [1]

Return to Ford Forum home page or view the Full Version of this page.