Car help please - Diesel Smoking on Kick Down

[PTR]

Originally Posted by George Collins

check the air filter take it out and iether replace it or hoover it out dont bother with the oil that wont cause your problem otherwise its duff exhaust valves injectors etc and expensive

the three colours are white smoke is unburnt fuel so injector prob, blue smoke is engine oil duff rings etc, or black smoke which is mixture problem(wrong air fuel thing) and/or injectors valves

Oil change is something I wanted to do anyway, was "done" in the last service, but I'm sure oil shouldn't be this black after such a short space of time - plus no idea if decent oil was used - so I want to do it myself with castol or simiilar. Not expecting it to make a difference in all honesty, but its peice of mind etc.



It kicks out a little white smoke if I hold it at high revs. No blue smoke. If I haven't booted it for a few miles, then I do, I get a canny whack of black smoke.

The performance and MPG of the car are both fine, by the way.

[El Matador]

Originally Posted by PTR

Looking for some advice, as I'd like to fix this myself if poss.

Got a 54 plate Mondeo 2.0 TDCI that is chucking out a ton of black smoke if I accellerate hard.

It smokes a bit at high revs in general, but its always done that (although its 25% worse now), but its these massive plumes of black smoke that I'm worried about.

It never used to do this, its just in the last month or so.



I've heard that changing the fuel filter, and pre-filling it 50% with Forte can help to clean the injectors.
Also planning an oil change tomorrow, as despire a recent service, the oil looks very black.


Anything else simple that can be done before it goes into a garage?



Disclaimer: When I say "I want to fix", I mean I want to buy the stuff, and then get my dad to do it, as he's the car-man of the family, not me!

Start with the easy stuff, put an additive (i don´t know its name) into the diesel tank to clean the injectors. Did this for my last MOT and passed the emissions test.

[PTR]

Originally Posted by MackemMagic

PTR - Its possible that its the EGR Valve.

You can clean these pretty easily as a cheaper option to replacing them at first. Dont know if the valve sits in the manifold or not on a Mondeo.

I know of a Mobile mechanic who could probs clean it up for you - hoy a reply up if you want the number mate

That's certainly something that was in the back of my mind. A few people in the office have had problems with theirs. Know nothing about them, but if its something you can get to, remove, clean and replace, my dad will be able to do it.

[MackemMagic]

Originally Posted by El Matador

Start with the easy stuff, put an additive (i don´t know its name) into the diesel tank to clean the injectors. Did this for my last MOT and passed the emissions test.

Wynns or Millers Additives

[El Matador]

Originally Posted by hiroftm

Instead of making another thread, I have a question about mine. When the car has been idle for a while when in neutral it seems to start in really high revs, sitting between 1.5k and 2k reves until I've been driving for a little bit and then if i come to a stop it sits just under 1k. IS this normal?

Automatic choke ?

[MackemMagic]

Originally Posted by PTR

That's certainly something that was in the back of my mind. A few people in the office have had problems with theirs. Know nothing about them, but if its something you can get to, remove, clean and replace, my dad will be able to do it.

The EGR controls the recirculation of the the fumes throughout the system and one clear symptom is often very black smoke and the occasional smell of fumes in the car.

Wynns do an EGR cleaner, should be able to get it pretty easily I'd imagine.

[hiroftm]

Originally Posted by PTR

If its an old Petrol, on a cold morning, perhaps. Otherwise, no.

It is an old petrol and generally, it is cold on a morning or when its been sitting at work for hours and its not exactly been warm lately.

[PTR]

Originally Posted by hiroftm

It is an old petrol and generally, it is cold on a morning or when its been sitting at work for hours and its not exactly been warm lately.

Could just be the choke kicking in. Quick test, let it idel for 2 mins, then press the throttle to the floor and immediately release. Does it return to normal?

[WheyHey]

Ram a tatty up the exhaust. Problem solved.

[El Matador]

Originally Posted by hiroftm

It is an old petrol and generally, it is cold on a morning or when its been sitting at work for hours and its not exactly been warm lately.

Sounds like the auto choke.