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post #3 of (permalink) Old 27th February 2009 Thread Starter
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Originally Posted by vass20 View Post
Have you checked the obvious? Air filter, diesel filterS, egr valve etc? If it only happens at speed, I'm inclined to think it is fuel/air-related.

P.S. Just remembered something else... An exhaust system leak under the bonnet will cause loads of carbon black to be sucked into your air filter element which gradually gets blocked.

They only called me "diesel fitter" because whenever we had shoes in the warehouse, I'd pick up some size 5s and say, "These'll fit 'er!"
Thank you VASS20

The van has recently had a big service and all these items were replaced, serviced, chacked.
One common factor is the deisel "glow plug' light on the dash. When this is OFF the van runs fine, then at speed the "glow plug" light comes on and badly affects performance UNTIL the engine switched off again. Then the cycle reoccurs.

Any further ideas would be appreciated.

regards bill
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