diesel smoke test

My L-series has failed its MOT on smoke emissions. Passed on everything else. I had put a new air filter on and put injector cleaner in the fuel. Is there anything else I can do except take it to a main dealer?
And I don't want to burn it.

diesel? dunno if uv heard this one but.......

Stick a gallon of petrol in it...the tank that is taxi drivers swear by it

how does that help it?

howardo said:

how does that help it?

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No idea but me mates a taxi driver and thats what they do

I'll try it and see if it works, do they put it in prior to the test or drive it about before the test and try to clean the system with it?

I'll also clean the egr valve and maf. I also read that removing the air filter prior to test can help, has anyone tried this.

howardo said:

I'll try it and see if it works, do they put it in prior to the test or drive it about before the test and try to clean the system with it?

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drive around a bit so its mixed then tek it in

i'll let you know if it works, i got 10 days.

howardo said:

i'll let you know if it works, i got 10 days.

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Ive been assured it will, good luck

Ooooo I like your style.........next step is just to pour the petrol in the back and set fire to it

Not sure I'd put petrol in with your diesel. It'll damage the rubber seals, which are lubricated by the diesel, but the petrol acts as a solvent and disolves it.

Check EGR and crankcase breather filter first.

have you tried the italian decoke method ?

Put extra doses of the injector cleaner in & give it plenty of welly on a good run.
Sometimes the exhaust itself can soot up if the vehicle is never driven hard & this can also be blasted out at the test. Don't know the L-series but check all intercooler hoses to make sure they're sound. After that & the other checks it might be time to get the injectors & pump timing professionally checked out.

Drove like an italian nutter last night up and down the motorway, drive-train wasn't enjoying it.

Passed MOT on second attempt. I've been too busy trying to preserve the drive-train now its getting old that I haven't driven it hard. Goes like stink now.

but it wont rust - it will look pretty up on ramps

its good for another 12 months now.

wotcha do bout the smoke test?

nathan5346 said:

wotcha do bout the smoke test?

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Petrol does work or all the revving through all the gears did it. Didn't put a gallon in though.

howardo said:

Petrol does work or all the revving through all the gears did it. Didn't put a gallon in though.

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Great it passed