Whats this componet (1 Viewer)

Joined
Sep 8, 2002
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368
Location
Victoria, Australia
 
 
 
Above the heater fan which sits on the passenger side of the firewall, there is a part that is about the thickness of a cigar and about 2 inches long with one wire at each end. My question is what is it what does it do and is it important. My said truck is a bj42 1981.
Thanks in advance i know one you guys will know
Dazz
 
Joined
Jan 22, 2003
Messages
8,118
Location
Kansastitty
 
 
 
That part is a resistor that allows you to operate your heater motor with 2 speeds. Low speed, the current goes through the resistor, high speed goes directly to the motor. :)
Ed Long
 

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