Technical Tips > Brakes, Suspensions, Steering, Wheels & Tyres

Power steering issue

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Cameron 77C3:
No it's not on my beast.

I have a mate who has a C4.  He put it up on my hoist so he could change the old oil on the power steering.  Drained it, ran the motor and moved steering from lock to lock to get as much fluid out as possible.

Filled her back up...and it groaned it's head off.  He thought that it might be his pump as it was getting old so he decided to put the new one in.  Same thing with the new pump.

Now there has got to be a trick here so what is it?

Chromie, any body.

Cam[/align]

MADVET:
Sounds like air in the system. Just turn the steering from lock to lock while keeping an eye on the fluid level, continue this until the sound goes away and bubbles stop frothing up in the reservoir.

Cameron 77C3:
Cavitation????

There was a lot of air in it as I could see the bubbles in the remote tank.

So how long does that take?   He did do the lock to lock thing after filling.  He drove home, about 20 minutes of winding road then next day to Yass but he said it was still noisy but getting a LITTLE quieter.

Is this normal on these beast?  Is there no better or correct way to bleed the air off?

david_moore:
Sorry I can't help here, am very interested to know more as the power steering in the '91 does howl its head off after 'spirited drivin'. And no, that does not mean after 'the four schooner handling' option has been purchased.
I have often wondered about the correct way to service the power steering on a C4. Wish i still had the '79.:22

Chromie:
Yes cam madvette is correct
You have to run engine after each top up to the full mark of the power steering dip stick
Run engine while going from lock to lock on the steering
If pump is noisy after going from lock to lock shut down engine and check power steering oil level
and repeat this until level is at full
It is recommend that this be done with front wheels off the ground
The oil level should be checked again after 24 hours;-)

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