craig Posted March 10, 2010 Share Posted March 10, 2010 i have a 300 tdi disco that struggles to start and wont rev properly, i have checked all fuel pipes, cleaned trap under chasis, changed all filters, its got good fuel , changed lift pump.......... im starting to think this is a timing issue? gonna start to strip the belt off but wondering if anyone else has had this and what it was???? really doing my head in now!!! Quote Link to comment Share on other sites More sharing options...
mudmagnet Posted March 10, 2010 Share Posted March 10, 2010 mines the same cleaned everything out changed lift pump, changed filters, timing spot on, starts first time but really slow to rev only picks up when the turbo comes on Quote Link to comment Share on other sites More sharing options...
fozsug Posted March 10, 2010 Share Posted March 10, 2010 Check youre timing,check youre cylinder compressions, check for leaky pipes, if not then posibly the injector pump, had similar problem with mine, striped pump, head had got so much crud around it supprised any fuel was getting through! Quote Link to comment Share on other sites More sharing options...
T1G UP Posted March 10, 2010 Share Posted March 10, 2010 does it smoke heavily untill on boost? my 200 had this problem with excessive smoke, v slow to pick up untill on boost. was the timing, as the bottom pulley had distroyed the woodruff key. not sure whats with a 300 but if the cam belt needs doing anyway, then worth a look Quote Link to comment Share on other sites More sharing options...
JimAttrill Posted March 11, 2010 Share Posted March 11, 2010 If the cam belt is one tooth out on the crank pinion either way the engine will not start at all. If the camshaft pulley is out you will lose power - I know as the main dealer did this to me. Since then I change my own belts as I have the crank holding tool. The slow to accelerate could be the lift pump a blocked filter or air leaking into the system somehow. But I think you have covered all those problems. I had one disco with a few problems and I lent him my spare set of injectors and it did turn out to be that. But it's expensive to change them on the off chance. It could (unfortunately) be your pump itself. Also expensive to recondition on the off chance. If yours is an 'electronic' engine as used in late model automatics it sounds pretty normal. They are often just about impossible to start. Quote Link to comment Share on other sites More sharing options...
Wheels244 Posted March 14, 2010 Share Posted March 14, 2010 When you checked the fuel lines, did you check the connections on top of the tank underneath the inspection hatch in the boot floor ? These often corode and allow air in. Quote Link to comment Share on other sites More sharing options...
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