We hooked up a gravity feed and that worked just fine, so we figured maybe it just needed gas ran through it to get it primed since it sat for a few years, but it still wouldnt start so we hooked up a electrical fuel pump and it still ran ok. but now i dont know if i need to replace the whole fuel pump or just the little electrical plug on it. and when we unhooked it we had to move it after and i dont know where all the lines and clamp went to.
It could be the pump or the pump relay. relay is most come to go with the age but same as the pump if it has never been replaced in the past.
SOURCE: volks wagen golf diesel tdi Nreg
Check the glow plug thermo sensor...found in the cylinder head.
Unlightly anything wrong with injector pump.
Good luck
John
SOURCE: Car won't start, possibly fuel pump, where is it?
FIRST CHECK THE FUSE AND THE RELAY TO THE FUEL PUMP, IN THE FUSE BOX. IF THEY BOTH CHECK OUT OK THEN LOOK EITHER UNDER THE REAR SEAT OR UNDER THE TRUNK MAT FOR WIRES THAT LEAD TO THE PUMP. IN SOME CASES THE FUEL TANK HAS TO BE DROPPED TO REMOVE THE PUMP. HOPE IT IS JUST A FUSE. GOOD LUCK
SOURCE: 1980 VW rabbit, manual/fuel injection: I am
it starts from cold because the auto choke is on ,allowing a richer mixture ,try removing the sender unit in the tank and seeing if the connection from the pump to the outlet connection is ok or leaking causing a loss of fuel pressure
SOURCE: My 1985 VW Jetta turbo diesel was driving fine
CHECK TO SEE IF FUEL SHUT OFF VALVE IS GETTING POWER.IF NOT CHECK FUSE.THE FUEL SHUT OFF VALVE LOCATED ON FUEL INJECTION PUMP.
SOURCE: cranks but won't start like it has no gas
Sorry to burst your bubble but a 97 jetta no matter what model including the trek I and trek II dont have transponders in the keys that didnt start untile the 2000 jetta's
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