Question about 2004 Ford F150

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F150 1997 ford heater fan only blows on hight

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Plan on finding a melted blower motor resistor. Usually when the blower goes single speed, the blower motor resistor is the cause.

You can find it on the passenger side, looking up behind the dash / Glove box area.
In this picture the passenger side kick panel ( where the inertia fuel switch is at ) is on the right hand side of the picture.
f150 1997 ford heater fan only blows on hight - e599ffb.jpg

This is what it might look like when you get it out :
76bb5d6.jpg
The blower motor only has the 1 fuse and blower motor relay on it. If it works on high, those are OK..

Parts should be less than 75.00 total from a dealer, and it is a metric socket and lay on your back on the passenger side floor repair, real easy and quick.

Posted on Nov 16, 2009

  • Ervin M Marston Aug 21, 2013

    Great info and help good picture also THANKS

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  • Master
  • 424 Answers

Check the blower resistor located near the blower motor on right side of dash. Most likely the thermal fuse has blown causing high speed only.

Posted on Nov 16, 2009

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Posted on Jan 02, 2017

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SOURCE: ford windstar98 heater problem

its either 1 of 2 things. either your heater control is a lil faulty or the blower motor is going..up here in southern tier ny at napa the switch lists at $13 the blower motor now for the parts under the hood. main unit lists for around $42 the rear unit without the blower wheel lists around $43 and the whole thing assembled runs for about $120

(those prices are rounding UP to the next dollar i cannot verify if the prices are the same around your area. but NAPA can :-D )

Posted on Oct 22, 2009

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