Thread: Discovery II v8 fuel delivery problem

Originally Posted by Blknight.aus

the pump may be on the way out and over heating.

This sounds right to me too.
The Knight didn't spell it out but the pump likes to have fuel around it to keep it cool, so running low levels a lot is not good.
The normal fuel pump strainer is very large. No way you can block it up and cause issues.
If the pump has done 200,000 KM' s then it's time to change it.

Hello guys,

some time ago I had a problem with fuel delivery of D2 V8 2001 130.000km. In summary: when driving on reserve with 5 litres of fuel left in the tank, the truck stoped ( "ran out of fuel" ) when waiting on lights. It was pretty warm that day - around 39'C. Some of you suggested that the fuel pump probably overheated or could be at the end of its life.

Since this happened, I drove of around 1000km. I have a felling that the truck is a bit lazy like never before and I noticed an increased fuel consumption - 19 l/100km versus 16.5 l/100km before. Do you think that the increased fuel consumption might have a connection with the fuel pump?

I visited my LR mechanic and told him about the problem. He thinks that if the pump would't work properly, there wouldn't be enough pressure in the tank and the truck wouldn't even start if the fuel pump is the issue. A full testbook diagnosis was done and this didn't show there is anything wrong at all. I changed MAF couple of weeks ago (genuine part) so I don't think the MAF is the problem. Any suggestions?

Thank you!
Cheers
Jiri