Hi there my defender td5 has an ongoing fault air in fuel
Have tried lots of fixes ,have renewed wiring harness,injector seals,fuel pressure
Regulator,fuel filter, have changed pump,even had it plugged in to diagnostic
At garage the technician says no problems with ecu. He says its a mechanical
Fault.another garage seems to think its the fuel pipes there the push fit type
Only get problem when fuel level gets about half a tank some might easy cure
Keep tank full but its bugging me and as you know landy guys don't like being

Bbbbugged any thoughts .

most likely the pump if its half full issue

Hi James thanks for tip I am going to pressure pump next step going to put gauge in return line from cooler to filter should be able to see amount of air
Returning from engine there is a clear runoff pipe on pressure guage
P.s sorry for miss print should read pressure test.see what's going on