Partner van - 05 ?? - Transmission 'drone' - bathtub tom
A works van developed a droning noise recently.

It's definitely transmission as opposed to engine noise - it's relative to road speed not engine speed and it's still there if you press the clutch or coast in neutral.

It starts at about 20MPH and volume increases with road speed.

Because the noise reduces with left hand steering input, but more or less remains the same with right hand I suggested it was probably the front left-hand wheel bearing. It's certainly the first thing I would've gone for if it was my car.

The workshop (say they) replaced the front left-hand wheel bearing.

The noise is still there!

Any suggestions please on how it can be diagnosed?

Edited by Dynamic Dave on 22/04/2009 at 01:05

05 ?? Partner van - Transmission 'drone' - bell boy
ive replaced so many bearings in life only to find i did the wrong side
did a cv joint the other week deffo nearside thinks me,guess what
05 ?? Partner van - Transmission 'drone' - Andrew-T
Didn't you spin the wheel off the ground first? Doh ... :-)
Partner van - 05 ?? - Transmission 'drone' - hairybob
I have a 406 and had a vibration (drone noise) that kicked in at 2300 rev driving or not. It turned out to be the drivers side engine mounting, the rubber joint had parished, if thats any help.
Partner van - 05 ?? - Transmission 'drone' - Peter.N.
When steering to the left the weight is thrown on to the right hand wheel bearing - try changing that.
Partner van - 05 ?? - Transmission 'drone' - bathtub tom
>>Because the noise reduces with left hand steering input, but more or less remains the same with right hand I suggested it was probably the front left-hand wheel bearing

They replaced the other side and cured it!

My status dictates I shouldn't jack up the vehicle to analyse the problem, but merely report it in the log book which they'll pick up at the next inspection!- dream on.

Today it would't lock occasionally and when it did, it wouldn't unlock.

I gave the lock a liberal appliation of WD40, to no avail.

I expect nothing to change in the future.