Hi, I have a 2003 3lt D RR Vogue. Ive noticed a slight change in the engine sound (whoosh when i put my foot down) and a slight loss of power. It happened a few weeks ago but cleared up, its now back again. Any ideas?

Is the viscous fan sticking?

Though that wouldn't normally cause power loss...... 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Yes ive checked it, its spinning and only moved and around 1/4 when off. The loss of power is only verg slight but enought ive noticed it.

Could it be a split turbo hose?

I thought they smoked a bit if a hose was split. Might be wrong though...... 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

I did read that somewhere else, but would that stop and start again? Once split surely it would of contined to make the same sound once split?

Unless it opens up under boost pressure...