Why is my injection pump not working properly?
Black smoke may suggest restricted air intake usually due to a dirty air filter. Finally, any water in the fuel system that freezes will prevent engine starts. When this happens, thawing it out is the only option. Injection pump problems will also prevent successful engine starts.
What causes fuel injection pump to back up?
The spray tip (where the fuel leaves the injector and enters the combustion chamber) is particularly prone to “backing up,” so to speak. If your engine has ever sputtered or hesitated during acceleration, a clogged fuel spray tip might be the glitch. And it all starts with subpar diesel fuel.
Can a weak fuel pump cause a car to not start?
A weak fuel pump may still pump fuel, but the vehicle may experience difficulty starting from the lack of pressure. A weakened fuel pump can cause the vehicle to take more cranks to start than normal, and in more serious cases may even cause the vehicle to require multiple turns of the key before it will start.
Why is my fuel pump sputtering when I accelerate?
The jerking and/or sputtering will still be present, but it will occur when accelerating. In particular, when accelerating from a stop. Again, if it’s the fuel pump (which it most likely is), it’s down to the inability of the fuel pump itself to hold the needed pressure to get the fuel from the tank to the injectors.
Black smoke may suggest restricted air intake usually due to a dirty air filter. Finally, any water in the fuel system that freezes will prevent engine starts. When this happens, thawing it out is the only option. Injection pump problems will also prevent successful engine starts.
The spray tip (where the fuel leaves the injector and enters the combustion chamber) is particularly prone to “backing up,” so to speak. If your engine has ever sputtered or hesitated during acceleration, a clogged fuel spray tip might be the glitch. And it all starts with subpar diesel fuel.
What should I do if my Mercedes Benz won’t start?
Start the car and you should be able to get around 60 psi. When the engine is running and when you turn off the engine the pressure should stay steady. Always perform this test on a cold engine. Next, make sure that the fuel injector connections are secure and not loose. Check the fuel pump and the fuel pump relay.
Can a diesel fuel pump injector be clogged?
Diesel fuel pump injectors are high-precision components. They also deal with a tremendous amount of motion and other stresses. One small visitor inside (a piece of dust, debris, etc.) can clog the injector. Worse yet, a microscopic object can leave the injector open all the time. If the injector can’t close, cylinder performance is compromised.