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Did you check the fuel pump fuse? It's often all by itself, and not in the fusebox. This is the case on Chevy/GMC C/K trucks, it might be similar on the Astro van.
It is located in the gas tank, you will need to remove the sending unit at the top fo the tank. To access the sending unit, you will need to drop the tank by removing the straps. It is a big tank so drain as much as possible and disconnect the batter before you start.
I would recheck fuel pressure and see if there was a hose or something let go inside the tank . indicated by no pressure, possibly a faulty pump I've seen new ones **** out, also these vans with the 4.3 were bad for having weak coil wires and shorting out against the inside of the engine cover ( doghouse) good luck.
Chk. all fuses, there is a fuse for injectors, If no spark at plugs chk ignition fuse and switch, and chk. fuse for e.c.m. Can't help with diagram. Parts dept. chevy dealer will print you one out.
2000 Chevy Astro Van Air blows only in defrost mode, cannot be switched.
my 2000 chevy astro want start. its getting power but want start. how can i fix this problem
got power to vehicle but not getting any gas
Where is the fuel pump located and is there an access panel inside the van
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