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Heater Blower problem


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moospis
Novice

Sep 12, 2006, 3:45 PM

Post #1 of 4 (2279 views)
Heater Blower problem Sign In

Hi again- I have a '94 Ford F250 which when I have the heat on only works on high speed. There is nothing at the low and medium speeds. I was told by a mechanic that I need a new switch. Any ideas on where it is located and how do I fix this problem? Thanks all


way2old
Veteran / Moderator
way2old profile image

Sep 12, 2006, 4:43 PM

Post #2 of 4 (2275 views)
Re: Heater Blower problem Sign In

The switch is probably not the problem. there is a blower resistor that is bolted into the plenum. When the resistor fails, it defaults to high only. Fairly common failure also.



Being way2old is why I need help from younger minds


moospis
Novice

Sep 13, 2006, 5:44 AM

Post #3 of 4 (2273 views)
Re: Heater Blower problem Sign In

Hi way too old= where would I find the blower resistor on the plenum?


way2old
Veteran / Moderator
way2old profile image

Sep 13, 2006, 4:03 PM

Post #4 of 4 (2270 views)
Re: Heater Blower problem Sign In

Should be out under the hood on the passenger side near the firewall. it is held on with two 5/16 head screws. There is a large wiring connector on it.



Being way2old is why I need help from younger minds






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