Interesting situation today. My Doblo at the garage (non-Fiat - a general maintenance garage) and I asked to replace the fuel filter (as I do not like to open the Fuel tank. After some conslutation, the reply: apparently, no fuel filter can be ordered seperately; only as an assembly together with the fuel pump. Costs: Euro 650. 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. The problems I have are relatively simple if you have the book or the knowledge but I have neither!!!! Does anyone have a diagram to tell me what fuse does what please :idea: my reversing lights do not work I have checked the bulbs they are ok. My Window washer pump does not spray and I thought this might also be a fuse problem. The 3 pipes on top of the filter are one inlet to supply fuel from the lift pump in the tank one outlet to supply fuel to the injection pump on the engine and one return pipe that returns excess fuel to the tank. Circulating fuel back to the tank also has the effect of cooling it for greater efficiency. You dont need to remove any fuses. In this case, the engine is probably experiencing rough idling both when it is cold and hot, and the problem will come and go. Common causes of white smoke are low cylinder compression, improper injector pump timing, and problem with the fuel injection system. As diesel engines age, the fuel injection system can start to “gum up”, and the 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. If it doesn’t pump water through the engine, it’s going to overheat and do a lot of damage. Typical signs of a bad water pump include overheating, white smoke, a bad smell, rough idle, and more. A water pump works by pumping water through the engine. If nothing turns it, it can’t pump any water. Taking a look at the health of the drive Black smoke under hard acceleration. * egr system blocked (needs to be cleaned) * low fuel pressure (check fuel pressure in rail using obd. data , accordingly check pump and pressure regulator. * check air filter is clean and air mass sensor is clean. do a compression test, to make sure the injector seats. xgGwR.

fiat doblo fuel pump problems