1991 Chevrolet Astro Q&A
1991 Chevrolet Astro Question: power pass door winow slow going up.
Right front power door window will go down but it is very slow going up. - Visitor
this is an early sign that the power window motor is going bad. you should replace the power window motor. - hollander62292
VERY often the wire that carries the electrical power to the motors kinks and starts to break strands, resisting current flow. this would be happening in the cable bunch between the door and the frame. There will be a rubber fluted sleeve that this cable is in. 9 times out of ten that is the problem. This resistance drops voltage so the motor goes slow and at the same time raises current draw which heats the motor and burns it out. (Electronics folke know E=IR) - Visitor