My Mazda diesel ute is leaking diesel from the rear of the motor. What would cause this?
In my opinion you would need to be able to see where it is leaking fuel from exactly in order to pin point the cause. But I will give you some ideas that come to mind. Fuel lines leak. Fuel injector pumps leak. Fuel filters leak. That in mind, I would try to remember what the last thing was worked on. Like, did you just have the vehicle serviced and the fuel filter replaced? This might be the best place to look first.