Danza V Posted January 22, 2014 Share Posted January 22, 2014 Hi all!My new diesel daily.. Mondeo 2010 tdci 2.0 ( I know it aibt a starbo, but you guys have helped me out tonnes before! ) basic clay when I start it in mornings from cold it idles rough but then soon after a couple of blips it clears up... Any ideas?? Quote Link to post Share on other sites
maddox710 Posted January 22, 2014 Share Posted January 22, 2014 Change glow plugs Quote Link to post Share on other sites
yaristurbo Posted January 22, 2014 Share Posted January 22, 2014 injectors? if glow plugs are easy enough to remove do that and test them, if not go to a garage and get them to perform a leak back test from cold Quote Link to post Share on other sites
Flaminsam Posted January 23, 2014 Share Posted January 23, 2014 Could be one of a couple if things. Firstly glow plugs, not too expensive to buy worth changing. Engine earths, ensure you have a good earth to your engine from the battery. The glow plugs do use a lot of current to heat up and any resistance will affect the performance of them. Diesel leaking "back to the tank". Diesels have a habit of leaking air into the fuel system. Air is much easier to suck or pull than fuel in a fuel system on a diesel. The first couple of seconds could just be using the fuel in the filter until the air is expelled (causing lumpy running) then diesel from the tank will be drawn through. Either way check/change glow plugs first then check for air leaks. That's when it gets interesting. Quote Link to post Share on other sites
turbo Grant Posted January 23, 2014 Share Posted January 23, 2014 To check the glow plug you will need to remove the inlet manifold. It's really easy to do. It's quite a common problem for the mondeo to start up rough. It can be down to a cylinder low on compression. You can put a clamp meter on the starter wire to check for that. The pumps wear out on them also which results in the injectors becoming blocked up over time. Quote Link to post Share on other sites
Danza V Posted January 23, 2014 Author Share Posted January 23, 2014 Started it this morning and it didn't really run rough just like a little bump and that's it then settled after 2 secs... I think it may be weather or something. I don't get no smoke irvanythjng Quote Link to post Share on other sites
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