I have a 2004 duramax, while driving the brakes seized up on all four, I have low fluid in power stearing and notice what I thought was a vacume hose for brake system, goes directly in the back of resavor for power stearing, once I filled up power stearing brakes went to normal??? what is this all about??

SOURCE: 1997 Suburban 2500 Power Stearing and Brake problem

This sounds like a vacuum, or fuse problem. Also check your ground and battery connections.

SOURCE: 2002 chevy silverado 2500HD (automatic)

the power brakes are a hydrolic system ran off of the power steering pump. therefore if you have a busted power steering hose the power brakes will not work.

George Fischer

• 236 Answers
• Posted on Jun 22, 2009

SOURCE: replaced front brake pads they

on the back side of the bearing, near the break line is a little fitting. i think it is 5/16 in socket. loosen it, so the air comes. then try to hand spin the tire. if this doesnt work then you have to go into the hole located on the same side, about hte size of a peanut, with a screwdriver, and if you can see in there, there is a littel gear that has to be spun. it will loosen the back brakes.

SOURCE: 02 silverado 2500 duramax- loss of power steering/brakes

I know GM decided to run the brakes and power steering vacumm all off of the power steering pump on some of their trucks. This could really be a big problem because if your power steering quit it would stop supplying your brakes with vacuum to stop the truck. In my experience I would check out the situation with the steering pump. Change it for a new one. Don't take any chances on smashing your truck.

SOURCE: leaking brake fluid hose/system

Replace the leaking line, then bleed the system of all the air in the lines. Start at the furthest point from the reservoir. Until there is no air bubbles in the system.