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

new fuel pump was install but no petrol at engine

Asked by for the 2003 Nissan Altima
if its loose it would show a leak at the filter. poss. plugged vent to tank.
The was a leak at the fuel filter but now i just fixed it with clips now is working normal
good show. happy driving.
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?