Check your fuel pump. It's not getting fuel. Check the fuel pressure not just fuel flow, you may be getting some but not be enough pressuse to run the engine. I just went thru evrything possible to solve this and it was the fuel injector pressure regulator. I replaced O2 sensor/plugs/plugwires/cap and rotor/ IAC valve/ fuel filter/map sensor/vacuum hoses Then my cousin got a fuel pressure tester and it tested fine the first try then nothing . Took off the regulator and it was no good springs inside were in pieces It runs like a champ now. there was no return pressure to fuel filter and that was the problem.
Your 1987 Astro might go full throttle when the engine is started because the throttle is sticking. This could also be a problem with the starter or the ignition hanging during the start.
have a 89 Chevy astro van starts good till warms up the start to chock and then stalls
Electrical... try plug wires
i replaced the steering column and the fuel filter. the radio was stolen
check your fuelpump
probably got a short somewhere.
There are literally hundreds of reasons why vehicles will not start. You have not given us ANY facts to go on.
When was the last time the ign. wires were changed?
ignition module failure or ecm failure.
Timing belt.
I had same problem -- fuel pump went out.
start underneath the van. screws go up from inside the front bumper to the grill