Power Steering

[Tarka03]

Hi folks my power steering makes the most horrible noise on lock but the belt is not screeching any ideas as to what may cause this

Thanks

[gregers]

are you sure its the power steering and not the alternator pully/tensioner?

sounds like metallic twitering.

[seatkid]

On full lock, the power steering dump valves operate due to excess pressure. This is loud but I wouldnt describe it as "most horrible". You're not supposed to hold the steering on full lock for more than about 10 seconds as it could lead to temporary loss of power assistance.

[chrispb123456]

Low fluid level can also cause unusual noises, if it is low then you probably have a leak which would need investigating.

[Tarka03]

Thanks to you all just had it looked at the garage said it seems to be a problem with the engine revs on lock the revs drop off and causes a rattle in the power steering? never heard of that before any ideas

[chrispb123456]

Problems with steering gear and pumps are not that common, it's more often than not a seized alternator clutch pulley and possibly auxiliary belt tensioner as already mentioned.

 

This is assuming you have a MK2 2000 onwards as some earlier models have a solid pulley

[Tarka03]

Hi yes i have a 2003 1.9 tdi auto model but the noise now happens even when not on full lock. and today the temp gauge is going from 90 - 0 then back up again then down again and the led display went off for a hour then came back on again anyone help and are galaxys always this much of a problem