2003 Nissan Altima Q&A

2003 Nissan Altima Question: what can happen if the fuel filter is loose can the pump still work

new fuel pump was install but no petrol at engine -
Answer 1
if its loose it would show a leak at the filter. poss. plugged vent to tank. -
Comment 1
The was a leak at the fuel filter but now i just fixed it with clips now is working normal -
Comment 2
good show. happy driving. -
Comment 3
my car was dring nicely then i changed the fuel pipes that a connected at the fuel filter but now the is no petrol coming to the engine i made sure that the pipes a correctly install old pipes was 15mm to big then i replace it with a 6mm diameter fuel pipes ,what can be the problem? -