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Hunting Revs
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arnie8
 


Member Since: 04 Jan 2008
Location: Gloucester
Posts: 28

United Kingdom 2006 Discovery 3 TDV6 S Manual Java BlackDiscovery 3
Hunting Revs

With the recent cold weather the morning start has resulted in the engine hunting at idle. Its not too obvious but you can feel the car rock slightly form side to side along with the revs. It goes away after it has warmed up or been driven.

I think normal idle is about 700 rpm but watching the counter it probably peaks at 1000rpm. I seem to recall from last winter that on really cold starts the engine management cranks up the idle to around 1000rpm before dropping back to normal after it has warmed up. I wonder if the recent cold starts are borderline and it can't make its mind up.

Other than that I can only guess it is something like the Air flow or Air temperature meter that is failed/failing to give accurate temp information to the engine management.

Any ideas??  
Post #3833884th Dec 2008 9:43 pm
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SPOTTER
 


Member Since: 06 Dec 2006
Location: Adrift........
Posts: 3095

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

I think the fBH seesm to influence it a bit, mine hunts in cold weather, always has done. end of an era ....... maybe a Defender when it appears.......  
Post #3833974th Dec 2008 9:54 pm
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Adiver
 


Member Since: 18 Jan 2006
Location: Rutland
Posts: 492

England 2012 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

you found any yet?


















Anyway....mine does it too - got 3 injectors changed under waraanty - no difference! Live with it now...its a feature sir!!!! Whistle D4 SDV6 HSE  
Post #3834405th Dec 2008 12:11 am
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