I am doing a relatively simple service on my truck, changing the PAS. I went out and got 4 qts of RedLine. I drained out the old stuff using a turkey baster, which gets the front compartment really good (did not go below hoses). Then I used a piece of tubing (actually same type I used for inudction - I was at walmart getting seafoam and asked if they had any tubing, they said no. So I went to the fish department and got 20 ft of the aerator tubing for $2, it worked perfect for induction- cut obviously) and syphoned PAS out of the rear part of the reservoir. Filled it back up (took less than a qt), and then turned it right and left x3, and repeated until now I have the third change of PAS in the car (now it is coming out the same color as the new stuff). I figured today I will drive it, and do the last change when I get home.

My question is this, do I need to worry about bleeding the hydraulic system. The steering works fine, but when I looked in RAVE they have a protocol for doing a PAS hydraulic system bleed. I guess I don't know what the sxs of needing to bleed the system are. I just don't want to starve my pump or do anything that would cause permanent damage. I would rather not do the bleed as the bleed valve on the top of the steering box looks like it is about to rust off, and it will probably make a huge mess.

Let me know what your thoughts are.


-Kevin

 

You have a supply out of the resevoir, as well as a return back.

I've not done it on my DI, but in the past I've disconnected the return back, put an extension hose on it.

Put the hose in a container, (bucket, milk jug), plug the opening on the res.

If you start the engine, it will probably pump the res empty in 3sec. so be ready with open quarts or just pull the fuel inj. fuse and have someone crank it.

As it pumps the old out, you are filling with new.

I've done it, works great, but fast if you start the engine.

3qts. is probably plenty.

luck,greg

 

If you have no unusual p/s noise when turn the steering wheel, leave well enough alone.