Well, if my wife put power steering fluid in my 2007 Silverado with 13000 miles on it, I would kindly and gentally thank her for destroying the brake system on the truck.
Brake fluid is designed to tolerate extremely high temperatures--as much as 1500F degrees. Powersteering fluid is not. What is happening to your brakes is thisthe calipers are not releasing off the brake pads--or they are sticking. The powersteering fluid destroyed the seals and pistons inside of your calipers. And probably inside of the anti-lock braking system because when powersteering fluid has a much lower boiling point than brake fluid. When powersteering fluid boils and cools down it turns to gel. THAT'S NOT GOOD.
You must replace all the calipers and/or wheel cylinders on the truck. And you must completely drain all of the fluid --- flush out the brake lines with brake cleaner --- change the master cylinder -- maybe change the power brake booster -- and maybe change the anti-lock system. The brake booster and the anti-lock system should be checked at the dealer.
BTW--Why was your brake fluid low in the first place?
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Thursday, January 10th, 2008 AT 10:12 PM