How do you change the power steering pump in a 2004 Trailblazer?

Answer 1

First, you have to loosen the Serpentine belt. This releases the pressure from the Power Steering pump pulley.

Then, you have to remove the THREE bolts holding the pump on the bracket. There are holes in the pulley wheel that allow you to pass a socket/extension thru in order to loose all three of 'em. You might have to rotate the pulley a little bit in order to reach each bolt.

Once the bolts are off, unscrew the lines that run into the bottom of the pump. Remove the pump/reservoir all at once.

Remove the reservoir from the pump with a flat-head screw driver. Two clips that need to be lifted and slid are the only thing holding the reservoir on it. And you have to slid the reservoir out of the pump (a small circle that you just pop out and eventually press back in when you're ready to install the reservoir back on the new pump.)

That's basically how you get it off. Reverse the steps to get it back on!

Answer 2

Remove the serpentine belt. Their is 3 bolts holding the pump, 1 line that has a clamp on it and 1 line that unscrews. The 3 bolts are in the holes of the pulley.align one of the holes up to 1 of the bolts and unscrew it. then turn a little and do the other ones. It is easy to remove the radiator water jug, 2 screws on top and it lifts up. This makes it easier to remove or undo the belt. When you put the hoses back on and fill the pump back up with power steering fluid, you will need to jack car up in the front to raise the two front wheels off the ground to bleed the air out of the system. You just turn the steering wheel slowly to the left all the way and to the right, may take several times to do this with the engine not running. check fluid again and you might have to do it again. Then crank it up. If there is noise , bleed again, but turn the wheel slowly with the engine not running. DFB