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84 ranger 2.3 heat only works on high


RangerFabWorks

RangerFabWorks

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my heater only blows when my switch is on high. what is the problem?
 


slycer2002

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Sounds like your blower motor resistor has gone bye-bye. Luckily, this is an easy fix.
 
RangerFabWorks

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where would it be located?
 
88broncoll

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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.
 
RangerFabWorks

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ahh ok thanks
 
valleyvinyl84

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+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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