streetxtreme

ok, so i thought i should follow up.

i SOLVED THE PROBLEM

after replacing all the rubber lines and clamps,

2 power steering pumps

and a steering rack

the problem with the foam was the inlet tube seal

the metal inlet that is attached to the pump with 2 12mm bolts on the side

there is a rubber seal in there that hardened up and was sucking in small air bubbles with the fluid from the reservoir. therefore causing the foam

how did i confirm that?

i had a air blower and blew air near the inlet of the power steering pump and guess what i saw.

it was lots of air rushing out the reservoir

this was with the car off of course

so there you go.

if anyone has a foaming problem with thier pumps, check that inlet seal first

its a 10cent part

i've spent about 500 so far

but oh well, you pay to learn

i found myself in the same situation

i just bought my car with a broken rack

i replaced the rack

then i realized that the car's power steering pump is dying because i would have to rev up to get power to the steering

so i replaced the pump with a used one which then blew the power steering high pressure line

i got my line repaired by a hydralics place

they reused the fittings and the restrictor thats in the line

after i installed the line, i would never be able to bleed the system

i would bleed it til there were no bubbles, but as soon as the engine was started, foam would start to build up in the reservoir

i thought it was the pump again so i replaced it with a rebuilt one

same foaming problem

so i thought it was the reservoir being clogged up, so i gutted the reservoir.

same thing

before the line went, there was never a foaming problem

we inspected the line and realised that it was a little to short and thinner than the original

i will be bringing it back to have them redo the line

i believe that the line has too much restriction causing the atf to be over heated in the pump causing the foam

hope i am right