Has this happened to you before?

[ChrisBR]

Whenever im below half a tank of petrol the car has trouble starting... I was told fuel pump is lacking power but i had that changed last year second hand part... Is it deffinately the fuel pump or can something else be causing the lack of power?

Thanks

[Barry123]

When you remove the fuel filler cap do you get a 'sucking' sound...?

If so there's a problem with the fuel tank breather valve thingy. What's happening is as the fuel is going down you're creating a vacuum inside which counters the pressure applied through the fuel pump, causing engine running problems.

[ChrisBR]

I'll have a look mate - ive just changed my fuel filter didnt notice anything

[stompin-sarah]

i have this same sort of problem but my car runs really sluggy (no power) when i have more than quarter of a tank of petrol....

anything under quarter of tank and it runs like a dream :)

if u find an answer to this can you let me know :)

[dankzy]

could be the fuel pump packing in, i would have bought one new then you would no if it was that or not

[ChrisBR]

Hey - thanks for the input... I had a listen to see if I could hear a sucking noise and can't hear anything...

This is really confusing me as last year a replaced it (I know it was a second hand part) but is there anything else that could be causing the problem or do you think I should just replace with a new fuel pump?

Thanks