I have a power steering pump for my 2000 Chevy Blazer 6 cylinder that I'm about to replace. I picked up a replacement from an auto salvage (so the pulley is still on it, one less step) however I cannot find a straight answer on what tools are needed as I have to pick through my grandfather's mess of a set and use a friends garage. Does anyone know what tools, sizes I'll be needing? If I have to get it on jack stands or will I be able to work on it without lifting it? Any help before I under take this would be appreciated.

 

I was just was looking at doing this.

As far as I can tell, you can get it out from above with regular hand tools, wrenches and sockets, etc. There are videos online showing people removing them.

As for sizes, a regular metric socket and wrench set should be enough with the most likely sizes from 10mm to 18mm with the actual sizes used likely from 12mm to 15mm.

 

I've done this twice.
- Change out power steering fluid so you don't put dirty fluid into new pump. You will need to jack up front end to rotate tires right/left as someone fills reservoir to get all the old oil out. Remove low pressure hose and put in oil drain pan. Start car and fill reservoir while turning steering wheel slowly left and right. This is a two person job. Do not allow pump / gear to run dry. When complete, you can clamp off low pressure hose and use the plastic cover from the new pump to plug low pressure outlet of old pump to prevent spillage.
- Remove radiator shroud and cooling fan. Gives you a lot more room.
- Remove bolts for a/c compressor and put aside. Be gentle with compressor.
- Remove a/c compressor mounting bracket. As I recall one of the bolts is behind the pulley so you will still need to remove it (you can "rent pulley" remover from any parts store.) The pulley remover requires two different size wrenches; one to hold puller and one to pull pulley off. Outer one can be long 1/2 wrench with socket.
- Finish removing pump, there are two other bolts shown in video below. Not sure if the one you got from the junk yard has tube and screw top. If not, salvage from old part.
- Install new pump - my recollection is there is a bolt hole for a/c compressor mount behind pulley so you may have to remove it to re-install pump. Easier if it is off engine. You can put it in a vice and use an impact tool. The pulley puller kit has all parts you need to remove and install. Read instructions. Video below has good overview of removing.
- re-install interference and top off fluid. Re-bleed until you get all air out of system and reservoir is filled.


Good video but I could never find part 2