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FBH running when hot
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disco chris
 


Member Since: 25 Apr 2022
Location: London
Posts: 243

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3
FBH running when hot

Evening chaps

Got home from a long drive this evening, parked up and popped the bonnet to top up the screen wash. I noticed that the FBH was whirring, I assume running. The car was about as ‘up to temperature’ as it ever gets. Is this a fault? It fires up fine on cold starts but I’ve not noticed it running when I park up before. I’m hoping it’s not been running the whole journey. My fuel consumption does drop to about 25mpg tops in winter, unless I’m really nursing it.
  
Post #231915717th Dec 2022 5:50 pm
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4398

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

Perfectly normal. These engines run quite cold (JLR would call it efficient!) and the FBH augments the temp of the engine to keep it within limits.
 Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone 
 
Post #231916517th Dec 2022 6:19 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10336

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

They do run all the time when snow is around!
There are hi and lo automatic heat selections
  
Post #231917317th Dec 2022 7:01 pm
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disco chris
 


Member Since: 25 Apr 2022
Location: London
Posts: 243

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Buckingham BlueDiscovery 3

Thanks guys, good to know Thumbs Up

Pleased with how the old girl has performed so far, cold starting with no issues down to -7 this week. Looks like glow plugs and FBH are fine.

Probs jinxed it now.
  
Post #231917717th Dec 2022 7:34 pm
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