Sorry eveyone never done this before really need some help with this one please. I have a diesel doblo 1.3 multijet on a 57 plate with 47k on the clock and i think i have really bad problem here. I was driving along as normal when the car starting revving up like the throttle was jammed open then clouds of white smoke poured out from the back. I switched the engine off but it was still running and over revving and managed to pull over when it eventuality died I tried to start it again but no luck, the warranty has just run out so i wanted to get some idea what it could be before i get stung at my local dealership. Has anyone had this before? Thank You

has it got DPF and full service history from fiat garage?

Gman1 said:

Sorry eveyone never done this before really need some help with this one please. I have a diesel doblo 1.3 multijet on a 57 plate with 47k on the clock and i think i have really bad problem here. I was driving along as normal when the car starting revving up like the throttle was jammed open then clouds of white smoke poured out from the back. I switched the engine off but it was still running and over revving and managed to pull over when it eventuality died I tried to start it again but no luck, the warranty has just run out so i wanted to get some idea what it could be before i get stung at my local dealership. Has anyone had this before? Thank You

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it sounds like Turbo Diesel Runaway, the oil seal fails in the turbo causing oil to enter the intake, the engine then runs on its own engine oil instead of fuel ,even if you cut the ignition there is nothing to stop it, normally it ends when one of two things happen, the engine revs until something lets go or it runs out of oil,the first is the normal outcome and you don't want to be close to it when that happens trust me, if you did not get a BANG it is possible it may have stop after a few seconds if only a small amount of oil was leaking through , in this case you could be luck and not have engine damage but the turbo is still shot.

the only other possible cause is injector failure on one cylinder, it may have stuck open and dumped a load of diesel causing it to self rev, however this would only affect one cylinder and would be very lumpy when revving by its self.

sorry not much good news here but hope it helps,

Thank you for the info its a big help, Its strange because there is no oil leaking from anywhere bone dry and the coolant level is fine normal colour but when i checked the oil level on the dipstick it was well above the max mark so i think this must be diesel in the engine. I think your are right its not looking good.

Yes it has got a dpf and has full service history but not fiat,

Good reply by Hundleton1,you may also have had a slight deiseling problem(see my reply to antmad) but i dont understand how yours stopped by itself unlike antmad who had to stall,As Hundlinton1 says you are lucky as the engine usually destroys itself with an almighty bang.Good luck and let the forum know how you get on.
Regards from France Mr B

i am lucky( or unlucky) to have seen both first hand, engine runway is very scary, i had a car in for heavy smoking one day, pug 306 if i remember when the turbo seal went whilst i was under the bonnet, it just revved and revved, i remember seeing the other guys who had been here before running, i decided that looked a good idea and followed, with in 30 seconds the cam belt let go and the noise was lest say not good, the engine totalled its self big time.

and as for the injectors i have seen a lot common rail injectors fail open,closed and anyway they can damn things, mostly the seals go but they can seize as well.

let us know how you get on

sounds to me as if its trying to regenerate the DPF unsuccesfully hence diesel down the bores into sump thus high oil level.

Have you ever had the oil degfredation counter reset (should be done at service)

Thank you. Very interesting.

I have a strange feeling about the 1.3 as well. I will stick with my old 1.9, and if I ever change the car it will be a 1.6, maybe? Or even a Multiair??

That saga of yours is illuminating, and the car is still pretty new. Might there be some link to it not being Fiat serviced - ECU updates and such? I know the problem looks mechanical, but I just wondered.

Hello

The same has just happened to my 05 1.3 Doblo at 106000 miles. The dealer thinks that one of the injectors hasthe rest of the engine is okay. Unfortunately it looks as if the cost of the repair is going to be greater than the value of the car so I don't know what to do. I really like the car and have had it from new with no major problems until now but it looks like a new car. One thing I am sure of is that it won't be a diesel and it probably won't be a FIAT. The modern diesels are now just too complicated and while you get good fuel economy you pay for it with huge repair bills if something goes wrong and when they do go wrong it can be very scary. One experience I do not want to repeat. Any suggestions regarding what I can replace the Doblo with.

Regards

David

I would get it properly checked first, 'thinks' is not a proper diagnosis.

Hello

Just to update everyone on my problem. One injector had failed but the rest of the engine was okay thanks to me having the presence of mind to stall the engine (my wife is relieved that she was not driving as she doubts she would have thought to stall the engine). The repair bill was £450 (£250 for a recon injector and the rest labour, oil and filters) so not as bad as could have been. I now have the car running and to be honest it is now running better than ever. However, I think I will start looking around for a replacement as our confidence in the car has been dented somewhat. Surely there is a safety issue with injectors that can fail and dump diesel in the engine causing a runaway situation. I think I will have a look at the KIA Cee'd estate, the 7 year warranty looks attractive as I can get a one or two year old model and still have a longer warranty than a new FIAT.

Regards

David