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Registered
2001 Seville STS
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56 Posts
Discussion Starter #1 (Edited)
hi there,

i have another problem on my seville..
i know the steering pressure hose is leaking (waiting for part ordered today) .

Today i start my n* after 7 months. no more than 2 minutes (to see coolant flow on the return hose to tank)

after stopping engine, i check some things and the steering tank....

when i open steering cap, i heard a pcchhiittt... like it was already pressure in it ! (never heard that before..)
and i can see tank is full of steering fluid bubbles !

after waiting about 15 minutes, there is no more bubbles and level is still at mid stick..

i think the fluid is burnt (with the orange color ?) no ?

when i receive my pressure hose, i plan to flush all the fluid, but how to do that properly ? have already seen the FSM but it's not clear...

edit : when i want to do a test drive i can heard lot of noise when turning steering wheel.... and at some point it is hard to turn... hum... i think i wait for pressure hose delivery and flush the fluid before any other things...
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
19,272 Posts
hi there,

i have another problem on my seville..
i know the steering pressure hose is leaking (waiting for part ordered today) .

Today i start my n* after 7 months. no more than 2 minutes (to see coolant flow on the return hose to tank)

after stopping engine, i check some things and the steering tank....

when i open steering cap, i heard a pcchhiittt... like it was already pressure in it ! (never heard that before..)
and i can see tank is full of steering fluid bubbles !

after waiting about 15 minutes, there is no more bubbles and level is still at mid stick..

i think the fluid is burnt (with the orange color ?) no ?

when i receive my pressure hose, i plan to flush all the fluid, but how to do that properly ? have already seen the FSM but it's not clear...

edit : when i want to do a test drive i can heard lot of noise when turning steering wheel.... and at some point it is hard to turn... hum... i think i wait for pressure hose delivery and flush the fluid before any other things...
-----------------------------
looks like the system is sucking air -
and foaming up the PS fluid -
 

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Registered
2001 Seville STS
Joined
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56 Posts
Discussion Starter #3
yes, i will wait for the new hose.

so, when i made the replacement, do i need absolutly to bleed the steering system ? (don't have a vaccum tool like FSM say to do...)
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
19,272 Posts
yes, i will wait for the new hose.

so, when i made the replacement, do i need absolutly to bleed the steering system ? (don't have a vaccum tool like FSM say to do...)
=============================
your existing fluid is contaminated with "micro-bubbles" that will never "pop" -
so - you need to drain ALL the old fluid from the system -

to bleed the system -
the easiest way is to raise the front tires off the ground -

with the engine OFF -
SLOWLY turn the steering wheel lock-to-lock several times -

then - use four pieces of cardboard - about 1 foot square -
place two of them - stacked - under each front tire -

this allows the wheels to be turned easily -
cardboard on cardboard -
rather than scrubbing the tires directly on the pavement -

start the engine -
turn the steering wheel SLOWLY - lock to lock - several times -

this will purge any air from the system -
 

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Registered
2001 Seville STS
Joined
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56 Posts
Discussion Starter #5
ok, i will do that for bleeding the system.

but how can i flush ALL fluid from steering ? do i need to unmount the return hose too ?
 

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Registered
1999 Deville Base; 2001 Seville SLS
Joined
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68 Posts
=============================
your existing fluid is contaminated with "micro-bubbles" that will never "pop" -
so - you need to drain ALL the old fluid from the system -

to bleed the system -
the easiest way is to raise the front tires off the ground -

with the engine OFF -
slowly turn the steering wheel lock-to-lock several times -

then - use four pieces of cardboard - about 1 foot square -
place two of them - stacked - under each front tire -

this allows the wheels to be turned easily -
cardboard on cardboard -
rather than scrubbing the tires directly on the pavement -

start the engine -
turn the steering wheel SLOWLY - lock to lock - several times -

this will purge any air from the system -
Or, instead of cardboard, fold up a couple of large lawn/leaf bags into foot-or-so squares. They make some SLICK sliding pivots. We used to do toe checks on RV front ends like this.
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
·
19,272 Posts
Several times?
It can take 100 times to get all that air(bubbles) outta there!


Sent from AutoGuide.com Free App
=========================
It can take 100 times to get all that air(bubbles) outta there!
actually - referring to the OP's fluid -
he will NEVER get the micro bubbles out -
which is why I said to drain ALL the fluid from the system -
 
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