Hi
On my Volvo XC90 D5 Momentum 2016 (85.000 miles on the clock) I have developed a high pitch noise from the engine area which comes on
only under load/ during acceleration (at about 2500-3000 rpm) and then disappears again at higher revs.
It is more pronounced uphill and when the car is fully loaded.
I never seem to get it when the car is cold.
It started about 9 months ago and is slowly getting worse.
I originally thought it might be from the Turbo system and brought it to Volvo but they said they could not find anything wrong with it but they also said they could not hear the noise.
No smoke. No increased diesel consumption. Power seems to be ok all but that I think I have lost some top end speed (around 20mph on German motorways
).
I have an audio file of the noise and will try to find a way to upload it.
Can anybody help?
Many thanks
Chris