the actuator is on the sides of the hvac control box under the dash in front of the console. but that just controls the heat or cold air. what you may need to look at is the vacuum operated pump. in the lower right of the pic with the vac line coming off it. ( you have one on each side) you also have a vac line under the hood that goes to this, its runs from under the windshield cowl down the pass side fender, and across the front of the car to a round ball in the driver side bumper. check that line for leaks or breaks. its hard plastic.
to see these pumps, you need to remove the glove box and to the left you will see it, the d/s is harder to get to, the plastic trim under the steering wheel needs to come off then the steel knee bolster, and the foot cover under by your feet, look to the right and its right up front.
i'd check under the hood before tearing all this apart to look at it, if you find nothing under the hood then take a look at the pumps, if you suck or blow into the line it should make it work. or at least feel vac or blowing from the line off the pump when the car is running and operating the controls.
the pass side floor wet heres that link
http://www.grandprixforums.net/water...-fix-6961.html
Originally Posted by scottydoggs
the actuator is on the sides of the hvac control box under the dash in front of the console. but that just controls the heat or cold air. what you may need to look at is the vacuum operated pump. in the lower right of the pic with the vac line coming off it. ( you have one on each side) you also have a vac line under the hood that goes to this, its runs from under the windshield cowl down the pass side fender, and across the front of the car to a round ball in the driver side bumper. check that line for leaks or breaks. its hard plastic.
