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muggo

Member Since 17 Oct 2011
Offline Last Active Sep 23 2013 11:48 AM
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Posts I've Made

In Topic: 2.0 Tdci "surging"

29 June 2013 - 11:56 AM

Thanks again for the comprehensive reply Feet On The Table.

I'll have a look at the air filter & get the fuel filter changed.  I do tend to run the fuel tank a bit low!

Cheers

Paul


In Topic: 2.0 Tdci "surging"

28 June 2013 - 08:16 PM

Is it a mk3 or mk4 Mondeo tdci? (presumably its a mk3 as it says "130")

 

Mk3 Mondeos do not have DPFs, (diesel particle filter) just a small, passive (non- electronic) catalytic converter

 

It could be a number of things, including transmission shunt caused by play in the DMF (dual mass flywheel) that can interact with the anti - stall, or it could be a "feedback loop" in the anti- stall - just use a bit more throttle,/ revs - it is not good for the engine/ trans/DMF to let the engine "labour" anyway

 

There are other things that can cause this, a good service can help,  and cleaning out the inlet manifold, and take it from there    

Thanks for the reply.

I believe it's a Mk3 (the one before the current model).  Glad to hear it doesn't have a DPF as they can be trouble.

I don't like the sound of the potential DMF issue.  It's an ex lease car so although the mileage is high, I think it has spent most of those miles in 6th gear on the motorway rather than stressing the DMF.

I should point out I never labour the engine - I get the new problem when driving on light or no throttle.  Revs are high enough for it not to be that that's causing the shunting.

I used to road test cars for a living so I'm quite in tune with what's happening, but shunting has only recently started.  I just wondered if it's a common problem that could be sorted by, say, adding injector cleaner to the fuel system.