smileyinfrance Posted October 26, 2017 Share Posted October 26, 2017 Hi, I wonder if anyone can help. I have a 2006 focus 2.0 TDCI, the car has been "juddering" occasionally when driving, it feels like its starved of fuel when it judders and happens intermittently I have done all the usual thing like injector cleaner etc clean the EGR valve changed the MAF sensor but the problem is still there. I have had it put on the diagnostics and it came back with no faults. One of the pipes to the DPF had perished last year so I made a temporary fix with a piece of copper pipe inside the rubber pipe until I could get a replacement. It stayed this way for maybe 6 months until it went again and I had the garage replace the split pipe. So I wonder if it could be the DPF causing the intermittent fault, howver if I run the car with the either the MAF sensor or the EGR valve disconnected (Electrical connection) the fault goes away. Any advice would be gladly accepted Quote Link to comment Share on other sites More sharing options...
south_bound Posted October 26, 2017 Share Posted October 26, 2017 I had similar on mine and it went away once I got the dpf and egr sorted out ("out" being the operative word). I got the glow plugs replaced at the same time, but don't think it was to do with that. I assume you are based in France based on your user name - which part? I'm in the south near Marseille, but get most of the major car work done when back in the UK with garages I have grown to trust. Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted October 26, 2017 Share Posted October 26, 2017 I'd usually suggest the fuel filter for a fault like that but if it definitely goes with the EGR or MAF disconnected then it seems to be related to one of those. DPF regens can/do cause occasional juddering, roughly every 500 miles depending on driving style etc. EGR is used for DPF regen so disconnecting that may stop the DPF from attempting to regen. A sticky EGR valve can also cause a judder as it opens in 'steps' rather than smoothly. 1 Quote Link to comment Share on other sites More sharing options...
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