Ah!! but that really depends on the pump ..the in tank pump is the "primimg" pump if its gettin towards Knackered then ....Quite possibly you could hear it "HUM" when you turn the Ign on .....NOT a veery easy thing to get at either (without ...

A. Droppin the Tank

OR

B. Cutting a damn great hole in yer rear floor under the seat !!!!


Heres a Linky to a member thats changed one ..STEP BY STEP GUIDE!!! (VERY useful read !!!) http://www.landyzone.co.uk/lz/f10/sucking-air-65366.html
 
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so gather not suppose to hear the pump buzzing away loudly for a minute or so when i turn ignition on then !!!!!!!!!!
could answer my idle problem and fuel consumption problem then if its about knackered
 
bigandgreedy said:
should i hear pump hum as soon as i turn ignition on ?? 2.5 td p38
Click to expand...

No the pump is not active until the ignition is turned to the start position. When engine fires and current is detected from alternator start position is disabled, by a polarity reversal pump relay is held in directly from alternator.
 
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bigandgreedy said:
so gather not suppose to hear the pump buzzing away loudly for a minute or so when i turn ignition on then !!!!!!!!!!
could answer my idle problem and fuel consumption problem then if its about knackered
Click to expand...

Do a current check on the pump, it has been put up on the forum a few times.
 
why more questions ??? stops starts goes and as the name says big and greedy just keep feeding it would be nice to sort it and am sure i will wont be beat never have yet just after advice
 
bigandgreedy said:
why more questions ??? stops starts goes and as the name says big and greedy just keep feeding it would be nice to sort it and am sure i will wont be beat never have yet just after advice
Click to expand...

Just a bit of banter mate you have to live with that on here. You asked and got the answer.:):):)
 
Aye 15mpg is a bit grim for a diesel. However, I can't see a duff in tank pump causing that. I had a similar problem a few years ago on a diesel. Providing you kept the tank above a quarter, it started and ran fine. Below this, difficult to start and used to cut out going round bends. Fuel consumption was always Ok though at around 22mpg knocking about.
 
bigandgreedy said:
can cope with that im as bad at times
would be nice to sort the problem tho 15mpg is bad
Click to expand...

You can check pump is working and it's output by following the procedure outlined in Rave. It depends what sort of town you live in also. Lots of hills, stop start in traffic and at lights and 15 mpg if your heavy on the throttle is about right. Usually if pump is not working there is a distinct lack of power especially on hills.
 
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