88 chev,350, stick,2wd, 3500, gas flows to

Is the ignition timing correct? Do you have any engine vacuum leaks?

fuel inj. sys. is looseing pressure when shut off . there is a check vavle that stops this . I'm just not sure where it is on that vehicle . check with a chev mechanic . Good Luck

Check for a shorted sensor. Try disconnecting the coolant temp sensor, they ussually go bad creating these problems (even when the gauge works fine). Also, you can check ignition timing.

Sounds like the fuel pump is going bad(or in this case,has gone bad). I suggest that you change the fuel pump and use a fuel cleaner in your gas tank as dirty gas may have caused the problem to begin with.

check for spark, no spark, no fire engine wont run, possible bad ignition coil, wire from coil to distributor cap, no power to ignition coil from ignition switch (rare) wire broken to ignition coil (even rarer)

Check the coil, the control modual in the distributer, and the ecm. thats what controls the injectors.

If the engines fires up when you pour fuel into the throat of the TBI, then it isn't ignition related

I'd replace the fuel filter (relatively inexpensive) then see what happens.

If it still won't start, check the cranking fuel pump pressure. If no (or low) reading, you may well have a bad fuel pump. Also can check fuel pump relay, to make sure you're getting power to the pump.

Good luck!

I have a 90 chevy k1500 350 tbi with same problem! I have traced problem to... after turning on key fuel pump kicks on when u crank it over injectors shoot gas and truck starts! After few seconds injectors stop spraying and truck dies! This can happen many times over and over! Eventually sometimes truck stays running and all is great! I changed ignition module, oil pressure sending unit (which i was told controls gas after vehicle is running) fuel filter, computer, fuel pump relay, I am at a loss now! Hope this helps and hope someone can help me!

fuel pressure isnt right.. need to get a fuel pressure regulator so you can regulate the gas flow..