Gavin Perry. Car mechanic. City and guilds level 3. 309 satisfied customers. Fiat 1,9 JTD 130 Sport: The electric fan does not work in my. The electric fan does not work in my Fiat Punto model 1.9 JTD 130 Sport from 2006. The fan can run at all levels but no air comes out of the nozzles … read more. fiat doblo fuel pump system fuel pump doblo 19d injector or pump no power at fuel sender unit in tank on 1.9d doblo fiat doblo cargo lucas set up missfiring doblo doblo 1.9 cargo engine cuts out alternative fuels veg oil with doblo elx 1.9jtd I carried out the work when the van had been unused and fuel pressure had gone down. I had air entering the system but the problem was not by the sender or tank it was fuel return and the plastic connector on top of the injectors, for the first time in 4 years it now displays a steady 53 mpg on the trip. 3. Dec 2, 2021. #3. I’ve been having regulator problems, sorter it by replacing the o-ring on the top of the regulator, all the pictures you see of regulator’s for this 1.3 multimeter have a second slightly larger green o-ring at the base, mine didn’t have this o-ring , although it did have a gasket between the regulator and the pump. If you want to know how to maintain this filter, do not hesitate to browse the following article: when to change the Fiat Doblo fuel filter. Injection problem on Fiat Doblo: When the booster pump supplies filtered fuel to the injection system, then this will be distributed by the injection rail so as to deliver the necessary fuel to each cylinder. Norfolk UK. Jan 29, 2015. #5. It's hydraulics on the doblo. I would be wondering if the reason the old belt failed so catastrophically is that the power steering pump was/is on its way out hence the grinding problem you're having and stressed the old belt to the point of failure obviously you've now changed the belt but maybe not fixed the fault. i am currently having exactly the same problem with a 1.3 multijet, i have fitted a fuel pressure regulator, pressure sensor, high pressure pump and a crank sensor and still the van will only start with easy start or on a jump. what i did notice is that i have no crank reading when im turning the engine over but it comes in when the van starts, ive done a current draw test on the starter motor Jun 2, 2010. #1. Newbie posting. I have a 2006 1.9 MJT (120hp) diesel Doblo with 100,000km on the clock. The engine light has come on and according to my local Fiat garage it is coming from the DPF (built in particle filter) which is clogged. Mechanic has reset the light and says I should run the car in fourth gear on the motorway at high speed JCI0.