power steering noise defender 90

Hi just wondererd if any one can help theres a noise when steering eg doing a 3 point turn like a humming noise any idea wat it can be please it seems ok on a normal run its just like on the spot work
defender 90 td5 52 plate

regards uppy

ffs, this is the website suggestions bit....

anyways, check yer power steerin fluid level - they make that noise when they're low. also check pas pump belt tension.

yes will do mate thanks

ps do you work ya spanial

Treworgey 90 said:

ffs, this is the website suggestions bit....

anyways, check yer power steerin fluid level - they make that noise when they're low. also check pas pump belt tension.

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Stop confoosing her trewy this is the deepender bit

uppy said:

ps do you work ya spanial

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aye - got 2, that's the younger one.
got our own walk / stand shoot locally

Sirus said:

Stop confoosing her trewy this is the deepender bit

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feckin wunt when I posted!

hmmm senile old duffer

My 01 td5 makes that noise, also only on the spot work.

Checked the fluid level etc. all fine.

Been making it for while now, no noticable problems.

Let us know if you find out what the noise is, cause mine will prob be the same.

Adsey

is the noise there weneva u turn or is it only if yer at full lock??

Don't know about him, but mine does it when turning it, if stationary or moving at slow speeds.

they all make a lil noise especially when turning the wheel when stationary. nothing to worry abt. was like that when i got my 02 Td5. i also tried a new one when my fellow LROS member just got one off the line.

but yes, do check the fluids and top them up if needed. after topping up if it drips, you know you have a problem.

I get that noise as well, only when doing turns at slow speed.

It says in my workshop manual "power steering grunt"

1, check fluid level and bleed system if noise still there

2, check to see if the correct low pressure hose from steering box to reservoir is fitted ANR 3152 if it is

3, do figure 8 manoeuvres to purge box e.g in a car park followed by 10 mins normal road driving

4 if grunt remains contact technical

i haven't tried it on mine yet but will do soon

Bushtoy said:

is the noise there weneva u turn or is it only if yer at full lock??

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The way power steerings work is very clever, and involves a skinny torsion bar just inside the steering box that takes the full twist of the steering column when you turn the wheel. When this skinny torsion bar winds up a bit it makes two parts of a hydraulic valve (that sits round the top end of the torsion bar) move in relation to each other, and this sends high pressure oil to the ram that will help the steering to go the way you want. As long as you keep turning the wheel that torsion bar stays twisted, the valves stay open open a bit, and it "assists" the steering.

It is very sensitive. The oil pressure is extremely high.

On full lock, and when turning the steering when parking, the maximum amount of oil pressure is passing the valve, and it makes quite a noise. You hear this because there is no road noise, and the engine will be running not a lot more than tickover.

Something like that.

CharlesY

Mine makes a intermittent grunt when doing slow turns, i presume that's what we're talking about.

mine grunts at slow speed, and i have to top it up once a week. found that eveytime i hold it tight on full lock oil ****es out of the steering box.- its a landy dont forget!

jimmyh said:

mine grunts at slow speed, and i have to top it up once a week. found that eveytime i hold it tight on full lock oil ****es out of the steering box.- its a landy dont forget!

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It shouldn't be doing that tho pal, even if it is a landy. Steering box needs replacing me thinks, or at least a bit of an overhaul. My box doesn't leak at all really.

i read an article about this very noise in land rover mag. not sure which one. They reckoned its quite normal on spot work.

Replacing a power steering box. - LR4x4 - The Land Rover Forum
PAS pump replacement 200Tdi - LR4x4 - The Land Rover Forum

ere Sean - start a new "how to" fred and then cut n paste - then it possibly can go in the Q's an answers section.

most of these all come from the ssame place - might be a good idea to put a sticky on the top of the introduce yerself bit, along with something like - "elo welcome, dont be mardy, do a search or look here" (or whatever there are called)

plenty of good stuff there inc piccies fer thems that can't read or use the search

LR4x4 - The Land Rover Forum -> Land Rover Technical Archive