406oc.co.uk

Hello
I have a 406 1.9td. I have a problem with fuel running back from the pump.I have had a look at the return pipes and cant see a problem and they dont seem to be letting air in as i can see.Dose anyone have an idea if something else could be causing the fuel to run back from the pump

Thanks Gaz

The lid on the fuel filter not sitting / properly tightened?

i will check the fuel filter lid tomorrow

thanks, ill post the outcome tomorrow