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Just an update as I think I've cracked it.

I got an O ring for both pipes, green is "in from PS pump" brown is "Return to Fluid Reservoir". The brown was the likely leaker as it was moving about...

Just to close this one off....

It was indeed the Ns front wheel bearing. It became more obvious as time went on that the noise was louder under braking and cornering right.

Cigar to LeeT5 and...

It's related to road speed, not engine RPM. From about 35+.

Cheers

Chris

I persevered with my poor mans's relay unit and got to a working state in the end.

30908

Some tips for anyone else:

to get the wires from the battery and the off-side I had to undo the...

The noise appears to have gone. I wanted to be sure, before posting back here, but I haven't heard it since Sunday.

What did I do on Sunday? Put a can of engine flush in and went for a few power...

Doesn't sound anything like a pheasant!

http://www.youtube.com/watch?v=PGQPe8LaDWg

I read (and clear) the ignition codes using a an LED and resistor connected to pins 3,(5) and 16 to the ODBII port as per this diagram:

29943

from JODT5 on volvo forums...

Use a multimeter (in series with the +ve connector) to measure current whilst car is switched off. Not sure what readings are considrered normal though!

A quick google has suggested normal draw...

Have a read of this : http://www.vpcuk.org/forums/showthread.php?55903-Recondition-Volvo-850-Engine-Oil-cooler-lines

These lines often fail after a while... rather then spend £140+ on replacements, you can recondition your existing lines relatively cheaply. The same will apply to transmission cooler lines. Job...

Here is a pretty picture of the parts involved:

http://www.vpcuk.org/forums/attachment.php?attachmentid=11119&stc=1&d=1308603716

Just wanted to share a finding on this subject....

When using 3mm silicon tube from inlet manifold to PTC .. dipstick smokes a little when engine at idle.

When using 5mm silicon tube from inlet...

Like I said, I didn't install it so can't really do write up. I just wanted to confirm that the 341 definitely does work.

There is this link which documents the install process by someone else.
...

It was the fuel pump. Cigar to Jamest5r!!!

Once removed from car and connected to power, a tap would initiate operation. ....So time for a new one (and a new thread)!

Thanks again!

C

Hi

This has been going for a while now, and getting worse I think. I would like to know what people think might be causing it.

If you could imagine going round a sweeping curve on a motorway...

Did you take the battery out of the car and attempt to charge it externally?

I would look at the alternator first - they probably don't appreciate too much moisture.

C

A most admirable quest! - and thought provoking - hence the stunned silence your post received.

I would have thought that all leaks in this system are not welcome, and would ultimately cause fuel...

I wrote a how-to too!

http://www.vpcuk.org/forums/showthread.php?t=27368

C

I see your avatar, and appreciate you may be very well acquainted with the area! ;-)

C

This is Fuel cut. You most likely have a boost leak between the turbo and the inlet manifold. Check all your hoses and also vacuum hoses from the intake vaccuum tree for leaks and splits.

C

Hi All,

Happily before engaging a man to look into this for £££s I happened upon this page:

http://www.matthewsvolvosite.com/forums/viewtopic.php?f=1&t=29563

And suddenly recalled that when...

Hi,

Thought I would write this as IMHO the Haynes manual over-complicates the job by requiring the removing of the battery tray and the need for tubes and bungs and all sorts of intimidating...

Yes indeed. :-)

C

just done mine this morning. Refreshingly straightforward. If you don't have assistance - a telescopic walking pole can also be used to hold the lid open OR you can lie on your back in the boot and...

Thought I would write this as I couldn't find one and there are a few tips that are worth imparting. Sorry no pics.

1. Loosen Front wheel nuts, jack up front of car support on axle stands and...