Aux belt

[Tony500]

Originally Posted by green van man

Oh $hit. If it's the power steering pump it's possible you will end up changing the rack resevour and pipes to cure it.
Seems the corrosion inhibitors in the fluid die and the alloy pipes get attacked bits then get into pump, rack and via the fluid the resevour.

What colour is the fluid? If any hint of brown the inhibitors are dead. Volvo have known about this for years but as the aim was electric power steering they just carried on useing the same fluid.

I change mine every 2 years as I found my original fluid brown when I purchased the car. Unfortunatly it has to be the volvo fluid or equivelent as the older models ATF which gave no problems will eat the seals.

Paul.

Checked the fluid also today and it was a nice yellow colour. Almost the same colour as new engine oil. Might try and put fresh fluid in and clean the reservoir the best I can before spending money on a new pump.

[green van man]

Originally Posted by Tony500

Checked the fluid also today and it was a nice yellow colour. Almost the same colour as new engine oil. Might try and put fresh fluid in and clean the reservoir the best I can before spending money on a new pump.

Hang on, mine is green in colour . Chesterd5 has a vidio on here about changing the fluid, his is a mk2 but apart from the resevour being in a different place the procedure is the same.
I baught 3 litres of volvo fluid but it only took 2 this time, I used 3 the first time to be sure to flush as much old fluid as possible from the system.

Paul.

[Clan]

Originally Posted by Tony500

Checked the fluid also today and it was a nice yellow colour. Almost the same colour as new engine oil. Might try and put fresh fluid in and clean the reservoir the best I can before spending money on a new pump.

perhaps that wrong oil has caused the pump to wear … should be green volvo power steering fluid ..

[Tony500]

Originally Posted by Clan

perhaps that wrong oil has caused the pump to wear … should be green volvo power steering fluid ..

So chf11 would be sufficient?

[Clan]

Originally Posted by Tony500

So chf11 would be sufficient?

here is the specification :

1 litre 30741424

Power steering fluid designed for Volvo power steering
systems. The fluid is specially designed for high temperature
variations. Working range from -40 °C to more than +130 °C.
The oil is also designed for use in the roof hydraulics for Volvo C70
06-.
Technical data
Quality: ISO 7308, WSS-M2C204-A2
Color: Green
Density: 840 kg/m³
Base: Hydraulic fluid
Lowest flow point -54 °C (104°F)
Viscosity at +40 °C: 19 mm² /s
Viscosity at +100 °C: 6 mm² /s

[Tony500]

Originally Posted by Clan

here is the specification :

1 litre 30741424

Power steering fluid designed for Volvo power steering
systems. The fluid is specially designed for high temperature
variations. Working range from -40 °C to more than +130 °C.
The oil is also designed for use in the roof hydraulics for Volvo C70
06-.
Technical data
Quality: ISO 7308, WSS-M2C204-A2
Color: Green
Density: 840 kg/m³
Base: Hydraulic fluid
Lowest flow point -54 °C (104°F)
Viscosity at +40 °C: 19 mm² /s
Viscosity at +100 °C: 6 mm² /s

Thanks mate... Never seen you struggle answer a question lol

[Clan]

Originally Posted by Tony500

Thanks mate... Never seen you struggle answer a question lol

I have been at it for 45 years :-)

[green van man]

I change my power steering fluid every 2 years along with the brake fluid and gearbox oil.

Paul.

[younger06]

The filter in the fluid resevoir gets blocked. Sort that out and use "Lucas Hydraulic Oil Booster & Stop Leak" with a fluid change,

See if that helps.......fairly low cost option and it worked for me.