84 ranger 2.3 heat only works on high


RangerFabWorks

RangerFabWorks

The O.G blackwidow67

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Joined
Jan 31, 2009
Messages
5,298
Points
3,101
Age
34
City
Lexington
State - Country
NC - USA
Vehicle Year
1990
Vehicle
Ford Ranger
Drive
2WD
Engine
5.0
Transmission
Manual
Tire Size
235/70 275/60
my heater only blows when my switch is on high. what is the problem?
 
Sounds like your blower motor resistor has gone bye-bye. Luckily, this is an easy fix.
 
where would it be located?
 
It is in the blower box, closer to the engine than the blower motor. It is the only other thing with wires going to it other than the blower motor itself.
 
ahh ok thanks
 
+1 on the resistor and your plug is probably melted to the resistor so it would be a good idea to replace that too. And also the part # for the resistor is RU-318 and the part # for the plug is S-630. The manufacturer is Standard Motor Products.
 
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