I've got a 1996 Chevy Blazer 4WD and have a power steering leak. It seems to be coming from the line connected to the top of the box that's located at the bottom of the steering shaft. I was wondering how to replace this, if there was a diagram, and if I have to use flare wrenches. If so are the metric or standard.

 

I expect them to be metric, can't help with anything else there.

 

It's metric. 18mm, IIRC, but don't quote me on it. It's a pretty straightforward job. The fittings probably aren't TOO tight because they use o-rings to seal, so you may be able to get by with a regular wrench. You should probably break them loose and do the final tightening with a flare wrench if you have one, though. Be careful with the o-rings. Make sure you get the old one out, and make sure the new one stays in place on the end of the hose when you install it. You're going to lose some fluid, so use a drain pan.

 

Thanks! My buddy showed me the guide on his all data, quick questions though. What's the best way to get at the lines behind the pump, and how tight should I tighten the new lines to not damage the O-rings?

 

I'm sure there's an official torque value, but I would tighten them tight enough that they won't come loose, but not so tight they get crushed. Think spark plugs, not lug nuts. Mine are super easy to get to from underneath, but there's a lot less clutter under my engine than with the stock front end. I'm not sure what the best way for you would be.

 

That's a great way to think about it, think spark plugs! I'll have a couple of pictures tomorrow for you to take a look at. I'm thinking that the steering shaft will have to be disconnected from the box like it was when I removed that tough #3 spark plug. If you could share your opinion after seeing the pictures that would be great!

 

Will do!

 

Here's a couple of pictures. I don't know where the leak is coming from. I thought it was the line going into the box cause the fitting had a little on it but then I saw the lines going to the cooler and the return lines. First, what do you think the leak is and second, what would be the best way to get at the lines at the rear of the pump.

 

Those lines are notorious for leaking at the crimps where the fittings are attached. Hard to tell on yours, though. Check the "cooler" (really just a couple of coils) to make sure it isn't rusted through, too.

The easiest way to get at that fitting would probably be to disconnect the steering shaft at the steering box and move it out of the way. Make sure you don't turn the steering wheel while it's disconnected.

 

Alrighty I'll get at it and update here as new things occur. Thanks!