Hi, has anyone had this problem?
Starts fine every time, but after about a minute the idle fluctuates up and down and white smoke comes from exhaust.
Van drives totally fine.
Once it’s warm then this doesn’t happen, but for the first 10 mins of driving, If I stop at traffic lights or a queue then idle starts going up and down and the white smoke appears.
Had a service 4 months ago, dpf seems to be fine as it happily carries out its own regens.

Lyndsnjasp said:

Hi, has anyone had this problem?
Starts fine every time, but after about a minute the idle fluctuates up and down and white smoke comes from exhaust.
Van drives totally fine.
Once it’s warm then this doesn’t happen, but for the first 10 mins of driving, If I stop at traffic lights or a queue then idle starts going up and down and the white smoke appears.
Had a service 4 months ago, dpf seems to be fine as it happily carries out its own regens.

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Hi

No warning lights.. fluid levels holding ok?

I would scan for fault codes.. just to give you a headstart..

How many miles on the vehicle??

Charlie

Hi, no warning lights, been monitoring the fluids and all still at same level - it’s been found this for couple of months now.

Had 3 diagnostic checks - latest being at fiat and showing up nothing

25k miles.

Fiat have recommended changing the fuel filter - which I’m not adverse to doing but it only had a service 4 months ago.

Thanks for reply

Ok.. low miles for issues.

So it ONLY does it as its cool.. once properly warm its fine..?


It SOUNDS like its unburnt fuel..


Glowplugs sound ok.. as it starts so well

So possibly overfuelling..

Cannot see how a choked fuel filter could cause smoke..?


What sort of use does it get?

Local runabout.. or long motorway runs..

Charlie

Yeh when it’s warm it’s fine, no smoke atall and idles totally fine.

Yeh one of the garages reckoned it was unburnt fuel and said they thought it was either a leaking or sticky injector, so referred it to a diesel specialist, they had a look and reckoned it was not an injector but could be a lot of different things and said it would take a lot of labour hours to source the problem and so a lot of money just on labour, they said “take it to fiat”
Fiat ran a diagnostic and it came up with nothing and then said fuel filter!?

It does lots of short journeys a couple of hours a day, I then try and take it for a bit of a blast for 15 mins before I go home as always aware that the little journeys are not great for diesels after my mondeo had so many problems with dpf from little journeys.

did you find out what was wrong? was it just steam due to a cold day and cold exhaust

Hi,
did you find out what was wrong? I am facing the same issue on a 2008 Fiat 500 1.3 multijet

I'd guess that there's wrong air coming in from somewhere that causes the processor based on the concerning monitoring sensors rates to give more fuel than necessary.
In order to find out where the wrong air comes from you can put oil on the concerning tube connections or at first move them.
Don't forget the tube after the turbo.

Good luck