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FSM Lifetime
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2,239 Posts
Discussion Starter #1
So as the title reads, the heater in my 96 is not blowing Air. it has a VERY slight output, but nothing even close to being strong enough to warm the truck, output doesn't seem to change much my using the speed switch.


My question is this, I assume the heater blower is bad (because it's not blowing air) But how do I confirm?


Vents, defroster, and floor, none of it works. Before it completely stopped working my heater would sporadically not work. I was sometimes able to get it to turn on by changing the heater control knob setting really fast/jiggling it.

Could that particular switch be bad? My main problem is I don't know how to test the stuff, and I don't want to buy an expensive new blower motor and find out something else is wrong.
 

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I scrape on both sides
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3,035 Posts
jump the motor. if it goes right back to full speed the switch is bad. if not the.motor is bad
 
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