I have a Mitsubishi Triton 2.5 diesel. It's just over 5 years old & the engine has started to run really rough, very erratic acceleration. I can accelerate up to 2,000rpm but above that it just wont accelerate any more. It feels like the engine is being starved of fuel.

I think it's the fuel pump or the injectors, & the diesel isn't being injected properly. On top of the fuel pump there's a plunger that you push down & it expels the air form the system. I can push down on it 8, 9, 10 times & it's still not enough. Am I right in thinking it should only be a couple of times?

Unfortunately I'm not working at the moment, so trying to fix it as cheaply as possible.

Anyone have any idea what the problem might be?

Cheers for the help guys.

Paul.

Sounds like a blocked fuel filter to me.

Yeah, first thing to try is changing the filter. It's cheap and easy and works a lot of the time.

Before you change the filter, I would drain the existing filter, and see if you have water. If you do, drain, fire-up the engine and drain it again. If you still have water, repeat the process until you get clean fuel from the old filter. Once you get clear, clean fuel from the old filter, remove and install the new filter.

I wish I was out of work, good luck!

Thanks mogandave & guzzi850m2 I'll try that. Hope that's all it is

As for being out of work, it was nice to have free time at first, but now I need work.

Anyway thanks guys.

Paul.

Take it to Mitsu for a computer diagnoses check FIRST.

Take it to Mitsu for a computer diagnoses check FIRST.

Please read he's trying to save money. Do as others suggest drain the filter to see if water problem then if not come back and report.

Take it to Mitsu for a computer diagnoses check FIRST.

Please read he's trying to save money. Do as others suggest drain the filter to see if water problem then if not come back and report.

Water problem, dash read out will tell you. Well Toyota dooooooooooooo.

Trans Am can read,novices messing about can incur bigger bills..Just Nit Pickink again..And Your Sugestion was John 1. was Nothing.

Do the filter thing. The plunger should firm up once there is fuel pressure.