fuel pump cutting out - Alfa Romeo Forum
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fuel pump cutting out


wednesday my 155 would'nt start. opened the boot removed the flap & checked the connections on the fuel pump and car starts again but had the same problem again coming to work thursday. this also happened 18 months ago and after investigation by alfa mechanic no fault was found and car has run great ever since. the is no noise of the pump priming when this happens. I can see from a manual how to take out the float but how hard is it to take out the assembly with the pump in it. could there be a dry joint in some connection in the pump assembly from the top of the assembly to the pump. once car fires up again there is no problem to trace but i think its at the fuel pump assembly end rather than at the fuse box as was the case in my MK1 gti years ago which had a similiar fault.



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I think I've read about the 155 having similar issues to the 156 in this area...
Try pulling the relays one by one and giving the bases a squirt of switch cleaner.
The wiring underneath the relays is also prone to corrosion IIRC!
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