i have a chevy express 305 vortec from 1997 that crank but doesnt start.
I am out of ideas where to search.
the second problem is that i am from belgium so al the parts needed needs to be ordered thru rockauto or amazon

what i did is following :

• new head gaskets
• refurbishment of the heads
• new timing chain
• new bolts, gaskets and al the hardware that is needed.

The problem is that the engine cranks but does not start.
i checked everything double , timingchain, timing of the distributor etc
The spark is i think weak ( orange )
fuel pump is working. the fuel comes to the spider injectors but no fuel is coming out. ( no pulse ?? )
crankshaft sensor works but a new one is coming to be sure
the car doesnt react on spraying brake cleaner in the intake

 

i am a little bit further.
i decided to start testing with the fuel system.
because the van is dual fuel ( propane is cheaper in belgium ) there is switch build in to chose which fuel i want.
that way i can run the pump continuous
i connected a fuel pressure gauche to the fuel line and that stayed on 0
when i was testing this i am hearing fuel splashing in the tank. thats weird because the fuel return line wasn't connected.

i thought f**ck, now i need to dismount the tank here on my driveway.
so i did
and my suspicions were correct. the inline tube was broken :/

 

today i repaired the fuel pump.
now i have back the full 65 psi.

The van want to start but doesn't
tomorrow i gonna check the distributor timing

 

now i dont now it anymore.
the van is still not starting.
it's just like the timing is complet offset

Anybody having tips for me

 

the final update

setting the timing right like noted in the 1998_GMT-98_CK-3_SERVICE_MANUAL-VOLUME_3_of_4.pdf did the job.
The van fired right up and is spinning like a new one
Me happy

 

Glad to hear you got it figured out!