2004 Tdci Juddering, Surging And Lots Of Black Smoke

[nick bfc]

I have a 2004 2.0 Tdci Mondeo 115bph, I'm getting lots of black smoke on acceleration and when its coasting a juddering but this goes when i accelerate and then it starts surging.

I've cleaned the EGR valve, checked the hoses for splits to no avail.

Can anybody please help?

[barbast]

My Octavia TDi had those symptoms, it was a split intercooler pipe.

[nick bfc]

Thanks barblast, I've checked the inter cooler hose but couldn't see or feel any splits.

[nick bfc]

I think it's sorted now, I've blanked off the EGR valve and now there's no juddering or constant smoke, also much improved MPG.

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[djb2]

Hi Nick,

I was about to reply enthustiastically with 'fit an egr balnking plate' but see you have already done this.

I presume you have the 2.0 tdci 130?

I have a similar car and had the smoke. After fitting the blanking plate it stopped smoking and is far more responsive.

Black smoke in my limited knowledge is I believe unspent diesel. Your car is now breathing pure air rather than recurculated exhaust gas.

Have you had any further issues or is it all ok now?

I fitted mine to weeks ago and it seems great...nil smoke

[bondie]

I've got a 2lt Tesco and have recently had a full service and still getting the problem. I am really considering blanking my egr valve off. Will it cause any harm in the long run?.

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[nick bfc]

Hi m8

Blanked mine off about a month ago now, no smoke, no juddering, extra 15mpg and passed mot too, I would give it a go, it's worked for me.

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