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engine anomaly
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forester31
 


Member Since: 15 Mar 2014
Location: toulouse
Posts: 6

France 2006 Discovery 3 TDV6 S Auto Tonga GreenDiscovery 3
engine anomaly

my engine anomaly comes back
disco 3 tdv6 of 2006, 200kkm, very charged (equipped raid)
it turns like a clock, except ...
... steady and steady speed on the highway
during a change of pace, in particular stress due to a slight coast, "ding" orange light engine anomaly, then loss of power, then black smoke
emergency stop strip, locking and unlocking, disappearing of the indicator, it is distributed again ...
to resume qq km away
it seems that this problem occurs even more when using cruise control
it happened to me after 1300km downhill France / Morocco
or during a recent test on 50km of highway, with valleys on the end!
someone would have a magic idea?
  
Post #199194115th Oct 2018 12:02 pm
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BrettKaz
 


Member Since: 11 Nov 2013
Location: Canberra
Posts: 209

Australia 2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

If the orange light comes on when coasting downhills it is probably the alternator. If the D3 alternator operates like most smart alternators then it has 3 modes. To save fuel the alternator does not operate at full capacity all the time ... just ~10 mins after start up to recover the starting power loss and then the maintenance mode until you back off the throttle then goes into battery charging mode (high output). If your alternator is faulty this high output mode cause it to produce AC ripple meaning instead of pure DC it produces a mix of AC and DC current. This won’t normally affect the big DC items (injector, fuel pumps etc) but plays havoc with sensors. If your alternator is about 8 years or 130k kms old it might be worth changing it anyway. You can change just the diode pack much cheaper by searching RN47 on here for the how to guide
  
Post #199219416th Oct 2018 11:08 am
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VOD80
 


Member Since: 26 May 2010
Location: Toulouse
Posts: 105

France 2005 Discovery 3 TDV6 HSE Auto Adriatic BlueDiscovery 3

I'm in Toulouse too.

I had similar when my fuel filter needed changing but it may not be exactly the same symptoms as you. If you need help reading codes, let me know, I have the MSV2.

A+ Tony
  
Post #200301622nd Nov 2018 6:37 pm
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