Check to make sure you dont have a hole in the line from the tank to the pump. you will suck air out of the tiniest of holes before pulling water up to the pump. i fought with mine for about 3 minutes before i just went to the parts store and bought a universal pump, drilled a hole in the tank and put the feed in it, and just did away with the pump on the wiper motor. Ran the wire for the old pump down to the new one, and the pump actually sits inside the fender, out of view if its kind of an originality thing for you.
I will definitely double check for a hole in the line. All I did was blow down the hole to see if there was a clog.
I tried a universal pump at first, because I felt from the start that it wasn't worth paying $70 for that garbage.
The switch on my Buick is different from what I have seen on the Chevelles. My switch has a push button then a rocker switch, where from videos I have seen Chevelles just have a rocker switch where one side washes the other side operates the wipers.
That push button acts kind of strange, it is more like a on/off kind of thing. Where I press the button then the pump goes at it for a second or two and try to spray fluid. I'm actually trying to sign up to a Buick forum as well to get a more detailed understanding if that is the way the button is supposed to work or if there is something wrong.
So when I press the button to activate the universal pump it will only turn for less than a second, where the mechanical crap seems to run longer.
Does anyone know if these bumps have a reverse polarity issue, like if you put the plug in upside down?
Other wise I will trouble shoot these issues. If nothing comes of it I will assume the pump is defective.
Thanks again guys, all feedback is welcome!