hi,
as part of the tune up for my recently purchased 97 bon'eville i see the ps fluid is nasty.
is there a way to bleed the system similarly to brakes or clutch? or do i just have to disconnect the hoses? also, is ps fluid all the same? can dextron atf be used?
thanks, peter
I often do a drain by removing the return line (low pressure) and letting it sit for a while (draining into my oil drain tank). Takes a bit longer and you have two places where oil comes out (so make sure you get both under the pan!)
I then reconnect the hoses, and refill the system with the recommended fluid (check shop manual or owner's manual) start engine and do bleed (on the lift, lock to lock about 20 times is usually sufficient, if hydroboost brakes, apply brakes about 20 times as well) to get air out.
Check quality of new fluid, if still contaminated repeat the drain/refill/bleed as necessary. I often find that I have to do it twice to get it really clean.
Be careful, do not start engine with the system drained!
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