Heavy engine breaking - whining noise

[shropshire lad]

Hello. Can anyone give advice please on what causes a whining noise , from just behind the engine , when under heavy engine breaking. It has only just started , I have not noticed a slipping clutch or any other problems . Thanks

[shropshire lad]

Oh yes . I have a Chimaera 500 , but it can't be a specific Chimaera problem

[shropshire lad]

With regard to oils they are all OK . Don't like the sound of excessive wear in the box

[shropshire lad]

No problems with gear selection either

[shropshire lad]

heightswitch said:

2nd gear tends to absorb lots of torque in a T5 during power on application..similarly 3rd tends to be the gear set that does most engine braking. Is the car experiencing the symptom in any particular gear..if not and it happens in any gear then It would point more toward the diff.If as you say it is coming from the front of the car then general wear of the gearbox may be the cause..

When was your gearbox oil last changed?

N.

Edited by heightswitch on Sunday 6th May 21:52

Hello and thanks for responding . The gearbox oil is changed annually and the car only does about 5000 miles per year.
In response to those concerned about engine breaking , I would only consider it on a completely dry road , and even then I am not talking about track style driving . However I take your point and agree that its probably best not to do it at all.