Fox Four Posted January 31, 2018 Share Posted January 31, 2018 My recently purchased TD5 seems to have an odd problem. At high revs in 2nd and particularly 3rd gear, the vehicle seems to stutter quite badly prompting a gear change. Once very warm (approx half an hour of running) these symptoms would seem to disappear. Is there any direct cause that I could investigate. kind regards FF Quote Link to comment Share on other sites More sharing options...
Tanuki Posted January 31, 2018 Share Posted January 31, 2018 (edited) Sounds like a fuel-starvation issue. When was the fuel-filter [under the offside rear wheelarch] changed? Also - can you hear the in-tank electric fuel-pump running? If it makes a noticeable whining/screaming noise this is a typical sign that it's on its way out: usually caused by failing copper injector-washers, which let combustion-gases and soot get back into the fuel-system causing 'black sludge' in the Diesel-tank, clogging the pickup-screen and making the fuel-pump work its heart out in trying to deliver fuel. Also worth checking is whether the turbo wastegate is seized closed: if it is, then the engine will overboost any time you give it some welly - the ECU detects the overboost and switches to a 'limp-home' fuelling profile when the engine won't pull the skin off a rice-pudding. --Pete "No man is totally useless. He can always be used as a horrible example to others". Edited January 31, 2018 by Tanuki Quote Link to comment Share on other sites More sharing options...
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