D4 3.0 v6 2011 weak power steering

J

Jowniofownio212

Member

Posts

56

Location

Wales

• Oct 27, 2023

• #1

Hello

Wondering if anyone has any suggestions before I remove the power steering pump.

Tyres have good pressure, 40 psi in 20” wheels, belt still there and fluid full.

Power steering is weak, better than when engine is off but still noticeably heavy steering constantly

Any advice?

Thanks

 

L

lynall

Well-Known Member

Full Member

Posts

25,890

Location

Kent

• Oct 27, 2023

• #2

Any noise from pump when in use?
Iirc there is a filter in the D3 pas reservoir, might be the same on the D4?

 

discool

Well-Known Member

Posts

13,627

Location

Sector 12 in Kent, The Garden of England

• Oct 27, 2023

• #3

lynall said:

Any noise from pump when in use?
Iirc there is a filter in the D3 pas reservoir, might be the same on the D4?

Click to expand...

Even my D1 has a filter in the reservoir same for all vehicles with PAS I’d expect.

 

L

lynall

Well-Known Member

Full Member

Posts

25,890

Location

Kent

• Oct 27, 2023

• #4

discool said:

Even my D1 has a filter in the reservoir same for all vehicles with PAS I’d expect.

Click to expand...

Might be the only bit on a d1 that does not rust!

 

J

Jowniofownio212

Member

Posts

56

Location

Wales

• Oct 27, 2023

• #5

The fluid does look very black, you reckon it’s worth draining it out and replacing fluid inc the res with the filter inside?

 

L

lynall

Well-Known Member

Full Member

Posts

25,890

Location

Kent

• Oct 28, 2023

• #6

Jowniofownio212 said:

The fluid does look very black, you reckon it’s worth draining it out and replacing fluid inc the res with the filter inside?

Click to expand...

To be honest I doubt new fluid will make it any better, but it cannot hurt,
If it's not making a noise you have to assume is not being starved of oil so the filter and pipes must be okay.

 

Stanleysteamer

Well-Known Member

Full Member

Posts

45,055

Location

East Dorset

• Oct 28, 2023

• #7

Maybe the problem is not in the PS but in the steering mechanism, something stiff, dry, or binding?
And make sure the belt that is still there is properly tensioned and not slipping.

And for heavens sake, yes, change the black fluid!!

 

Nodge68

Well-Known Member

Posts

32,954

Location

Cornwall

• Oct 28, 2023

• #8

My D3 column coupler seized up, replacing the column made the steering much lighter, however I did also replace the reservoir and fluid too. Mine had 18" wheels, but 20" rims shouldn't make the steering much heavier, unless it has tyres wider than the standard 255 width.