91 Caprice blower motor

I seem to be having a problem with the blower motor on my 91 chevy caprice. Lets say i drive the car, then, i park, turn off the engine, and do whatever i need to do. When i come back to the car, i would find the fan blowing at full blast (3rd speed). Whenever i exit the car, i specifically turn the lever to off, and the fan level to low. The most frustrating is in the winter, because i go to work, and when i return, my windshield is one big frosty and it takes me 1 full hour to defrost it completely, not to mention the marks it leaves on the inside. A little info on the car 91 chevy caprice, 305 5.0L(L03), power windows, rear defrost, delay wipers, with AC, analog climate control. I need to find out what this is because its making me...angry. I have changed a few engines and solved a few dillemmas by myself(i work as an auto mech apprentice), so i don`t mind getting dirty all the way. Thanks.

its more than likely in the "analog climate control," and its gonna be pretty hard to fix it here. put a toggle switch in 12v wire going to the fan motor.

Isn`t it better to grab a couple of wires and a switch and route them to the corresponding fuse in the fusebox?

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Originally posted by vdorobantu
Isn`t it better to grab a couple of wires and a switch and route them to the corresponding fuse in the fusebox?

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i meant to use the wire going to the blower, where you get the hot wire wouldn't make no dif. to me. :cool:

ok, i`ll try that. Thanks