Strange wuring sound

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tom_kent

New Member
Posts
108
Location
Kent, Maidstone
Hi my 300 tdi auto is makeing a strange wuring sound. I think it is coming from somewhere in the running gear, I have changed the oil in both front and rear diffs (dull green sludge came out) and topped up but still makes noise and oil in gear box is ok! It only rely starts at over 50 and under load as soon as I lift off it stops?????? Any ideas? Cheers
 
There is a small chance it may be your viscous fan at the radiator kiking in as I have had this noise with my V8 auto disco although more so in warmer weather and when towing.

It may be your torque converter not locking up and still slipping but I am no expert in autos.

Try removing the viscus fan (left hand thread) and take it for a run, if the noise is still there it may be the torque converter.
 
sounds like your diff, check union joints on prop shafts for small amounts of play and check the flange on the diff for play.:)
 
tom_kent said:
Hi my 300 tdi auto is makeing a strange wuring sound. I think it is coming from somewhere in the running gear, I have changed the oil in both front and rear diffs (dull green sludge came out) and topped up but still makes noise and oil in gear box is ok! It only rely starts at over 50 and under load as soon as I lift off it stops?????? Any ideas? Cheers
Click to expand...
Just a thought... My friend brought his to me with a similar sound came and went when on/off power strangely enough it was the u joint on the front prop close to the transfer get a hold of it and check for play... worth a try and good luck :)
 
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