In particular, when accelerating from a stop. The jerking and/or sputtering will still be present, but it will occur when accelerating. The second injector pump failure symptom is very similar to the first one, with one noticeable difference: it occurs when accelerating. The solution, much like for most of the next issues will most often be the same: a new fuel pump. The fuel pump can’t maintain the needed pressure at all times, so you get moments of sputtering. When it’s the fuel pump causing the trouble, it most often has to do with the lack of constant pressure. This symptom can mean other things, but people most often mistake an injector pump failure with dirty gas. The car may run perfect for 10, 20 or even 50 miles, but it will have brief periods of sputtering or jerking (1-5 miles) before returning to its normal state.

This most often happens on highways or back roads with a slightly higher average speed. The earliest diesel fuel pump problem is foretold by an engine sputter, particularly at a higher speed. Lets Take A Look At Four Of The Most Common Symptoms Of Pump Failure 1.

We won’t go into details regarding the differences, but we will tell you the most common diesel fuel pump failure symptoms as well as diesel fuel pump failure causes. There are two types of fuel pumps: mechanical (older) and electronic (newer).

It uses pressure to literally pump fuel from the fuel tank to the injectors, so it’s not that uncommon for it to be also called an injector pump.

The fuel pump is one of the most vital components for making the car run. Diesel fuel pump failure/injector pump failure symptoms

Bad fuel pump module symptoms