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What would cause my 3 litre diesel to increase revs from 750 to 1100 when idling after a drive

  • Could you be more specific about when it happens? Does it happen when you are waiting for a traffic light to turn green? Does it happen when you put the car in Neutral or Park? – Sam Mar 7 at 20:24
  • Thanks it happens when put in park after a few seconds and when waiting at traffic lights. – Barry Hancock Mar 7 at 21:26

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