Topic: Blower Motor
in Forum: C3 Electrical
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I have a 74 Vette. I have question I am hoping someone can answer.
My blower motor will not work on the highest settting. It will only work on the other slower settings. Is this because of a bad resistor and where is it? I have factory AC.
Thanks
Michael
My blower motor will not work on the highest settting. It will only work on the other slower settings. Is this because of a bad resistor and where is it? I have factory AC.
Thanks
Michael
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The high setting is controlled by a relay mounted to the heater box inside the engine compartment. It has a plug with 4 wires on it and is close to the exhuast manifold on the passenger side.
Brian - NCM Lifetime Member
73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, Seatbelt Plus 3point seatbelts, Pioneer CD player
Magnaflow Exhuast System
Dewitt radiator and dual electric fans
Borgeson Steering box

I also have a 74 and the blower wouldn't work n high. I was the high fan relay. If you send me an email I will get back with you on a simple way to test it to be sure. It will require jumping a couple of terminals on the relay with a jumper wire. If you feel comfortable with doing it I will look at mine and tell you just how to do it. I also can tell you an inexpensive way to replace it as soon as I try my idea and make sure it will work
in Forum: C3 Electrical
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