URGENT request for advice please.


Thank you for reading.

I have a 2.5 liter 300TDi engine in my 1996 Discovery.

For some months it has been running really well with intermittent power loss, 'holding back' for brief periods and then OK again. It has never been a good starter!

The problem seems to have worsened now with the engine stalling while going up short slopes/hills. This problem has become extremely regular.

Can anyone offer advice as to what the most likely cause(s) may be please? My initial reaction is fuel starvation, only a guess. I have replaced the fuel filter.

Any help will be much appreciated as I rely on the vehicle on a daily basis.

Thank you in anticipation.

 

Have you checked the fuel pressure on the rail?

My was reading over my shoulder and said fuel pump relay, that's here guess.

Good luck.

 

I havn't checked the fuel rail pressure. How di do this?

 

Not sure on a diesel, but if they are the same look at the fuel rail. There is a fitting on it like a tire valve. You can rent a gauge at the auto parts store, or even use a tire gauge(I heard it will ruin the tire gauge after time).

 

Diesel engine uses low pressure, those pumps are volume, my cummins runs like 7 psi stock?