Where is the heater blower relay on an 82 chev Luv 2.2L diesel?

Blower motor fuse - IsuzuPup.com

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Mar 4, 2013 - Never seen a blower motor without a relay whether it has a/c or not. Just trace the wires from the blower speed switch. 1989 Isuzu Trooper S/ ... Blower motor turning instruments cluster lights on?
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1981 ISUZU PICKUP 2.2L L4 DIESEL Auto Parts - RockAuto

Look for a dipstick on the side of the engine - it usually has a yellow curved handle.

fuse, relay, blower motor, switch, blower resistor

remove heater box from car ,or check for a ring of screws it might be accessible from under dash.

Try to replace the relay for the recirulation/fresh blower. I have a 1991 Chev PU and the relays are behind and below the glovebox compartment.

check the blower fuse? check for voltage at the switch (requires removing heater / ac controls from dash on most vehicles.)

Sounds like a relay is staying latched or you have a short to power for the blower motor.

The blower motor is probably drawing too much current. Try removing the motor and spinning the cage by hand, if it has a lot of drag i would replace it.

by R/R, do you mean Reset or Replace? and by heater blower switch, do you mean that the lo to hi fan speed switch is not turning the fan on?

If so, I had the same problem in mine. Instead, open the hood, and in the back of the engine compartment, on the passenger side, you will see two or three relays, they are little grey blocks about 1x1x2 inches. On mine, the middle one was burned out when I unplugged it. They cost about 12 bucks at the local auto store.

In the top of your heater plentum you should have whats referred to as a blower motor relay these tend to become tempermental as they go.