Quote:
Originally Posted by barney1golf
GM supplies 12 volts to the drivers side switch. Then comes off the drivers side switch to the passengers switch. So what happens is, when you roll both windows up or down at the same time you are splitting the voltage. Now you have 6 volts trying to run a 10-12 volt motor thus burning them up prematurely. Combined with the heavier windows that spells disaster. So, replace your motor and then try and remember to roll the windows up 1 at a time and this will extend the life of the motor tremendously. You see the same thing with any 2 door GM car. i.e. Grand Prix, Monte Carlo etc. Believe me with both switches there together, it is hard to refrain from doing both at once.
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My '97 still has the factory motors.... it does go a lot slower with both, so I usually roll both up at different times. I know on mine I can roll them up and down with the ignition off (til the doors open).... but it really bogs down, do you think that could cause it to wear down faster? I try to take it easy on it and rarely do it with the key out.