Got a SARD fuel pump for my Stagea (R34Gtt engine) installed about 6 months ago. Last week lost fuel pressure and stopped, towed home, took out pump, tested it and it worked, reinstalled, no problem since.
However, since then it stuggles for about 10 sec on cold start only, so Im thinking the pressure check valve is stuffed and losing pressure in the lines when i switch it off.
So is the check valve situated in the pump or is it the small 'thingy' on the fuel lines inside the tank ?
thanks