Was driving truck.Truck suddenly died and would not start.I have replaced fuel pump,relay,filter and oil sending unit.Still have the same problem.When it dies it does not want to start back up.It is getting spark and fuel pump is working but i dont get fuel at the injectors at the tbi unit.The ignition module has been checked also.It seems if i wait for a few hours it will start back up and run for a while and do the same thing.
SOURCE: 90 chevy k1500 350 tbi fuel problem starts but wont stay running
try bypassing the oil pressure switch on the back of the block behind the distributor, if there oil pressure switch goes bad it will do this. had one that drove me nuts trying to fix it then figured out I had to buy a book and low and behold thee it was 3 wire oil pressure switch you can't see between the engine and fire wall just behind the distributor and costs 8 bucks to buy new.
SOURCE: 1996 c1500 starts and runs then dies
sounds like a faulty pressure regulator be sure to test it before changing it
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Also there is no codes showing up when this happens.
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