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[chartz]

Hello,

How come my 2.5 TD works much better (more power, less noise) when the tank is near-empty ?
At first I thought this was an impression, but no, it does this every time the gauge approaches the red zone.
I'm sure there's an explanation.

[Omegatoy]

with diesel weighing around 10pounds a gallon, a full tank would be pretty heavy!! would think its just the less weight is the difference you can feel?

[chartz]

Probably not, since the feeling is the same with passengers aboard !

Thanks.

[Pitchfork]

Probably not, since the feeling is the same with passengers aboard !

Thanks.

Overweight passengers??

[zirk]

The Fuel Gauge Needle wieghs less when its pointing in the downward direction?

[omegadti]

I would have thought it was something to do with the fuel system.  I would start with the fuel filter and move on to the fuel pump.

[mickfit]

Hi mate
          Just one answer i have " If its not broke, don't fix it!!!"  

[chartz]

That's usually my motto too. But there's a real problem here I suspect, you can't even imagine the difference. When the tank nears its emptiness (!) it really is another car. The car I used to know in fact. Trouble is, problems like this appear gradually and you don't notice until one parameter changes and reveals it.
Anyway, thanks for your replies.

[Arrolman]

Hi,

Mi nes the opposite, runs much better when its got a good tankful. Would try running some injector cleaner throught it and a filter change, difficult to tell unless you can feel the difference im afraid :-/

Cheers,
Iain

[r1]

this seams  a strange one as i cant think of anything that would change apart from the weight in the tank unless the electric pump is a bit weak and with less fuel works harder which pushes the fuel at what it should be at  all the time.so the car isnt faster just working as it should

[chartz]

Should I clean the pump then ? The filter is new, and before changing it the engine stalled regularly.

[r1]

Should I clean the pump then ? The filter is new, and before changing it the engine stalled regularly.

well it wont do any harm its in the top of the tank only takes 2 mins to get at

[chartz]

OK, thanks, but it's full of diesel in there... Dangerous ? I daren't do anything, there are electric connectors bathing in fuel !

[Turk]

Disconnect the battery...and don't smoke on the job.  Diesel is nowhere near as inflammable as petrol.  

[r1]

OK, thanks, but it's full of diesel in there... Dangerous ? I daren't do anything, there are electric connectors bathing in fuel !

i think the electric plug is on the outside of the tank u just disconect unsrew the big ring and pull the hole lot out