td5 loss of power

hi to all and a happy new year .... 2000 plate td5 runs perfect go on motorway sit at about 85/90 fine but wen you deacellerate and put your foot back on the gas it dosent respond gives a plume of smoke and no revs ,, pull over for 2 seconds then pull off again and its fine ,,, any ideas pls many thanks

woody47 said:

hi to all and a happy new year .... 2000 plate td5 runs perfect go on motorway sit at about 85/90 fine but wen you deacellerate and put your foot back on the gas it dosent respond gives a plume of smoke and no revs ,, pull over for 2 seconds then pull off again and its fine ,,, any ideas pls many thanks

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EGR valve sticking

hi thanks for that but have taken egr valve off ,in last couple of days and still happens ?????

woody47 said:

hi thanks for that but have taken egr valve off ,in last couple of days and still happens ?????

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Have you checked that your turbo pipes are secure and not delaminating? What colour is the smoke?

smoke is like unburnt fuel , havent checked pipes what should i look for , many thanks

woody47 said:

smoke is like unburnt fuel , havent checked pipes what should i look for , many thanks

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Black smoke?

Get somebody else there to rev the engine. As the revs rise the pipes should expand as if they are being inflated like a balloon. If you cannot squeeze them together that is normal. If you can squeeze them or they suck inwards you have a blockage. Sometimes the inside of the pipe colapses and the outside looks normal. This is when the pipe delaminates. If the pipes aren't secure you may feel or hear escaping air type hissing as the pressure is being lost.

yeah black smoke sorry , will give that a try tomoz many thanks for your help

No probs.

Unburnt fuel is white. Over fueling is black. Lack of oxygen would mean that the mixture is too rich so in essence overfueling. It is most likely to be a problem with your air intake especially turbo hoses if the problem has only just come on after the removal kit was fitted.

Good luck

no had problem few weeks befor i took egr off ,

woody47 said:

no had problem few weeks befor i took egr off ,

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Not to worry. It is still most likely to be the air system at fault.

thanks very much for your time and help

woody47 said:

thanks very much for your time and help

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No probs. Don't forget to post up the outcome so it can help others in the future.