Have a 04 Chevy astro van readin p0303 already had injectors wires plugs cap n rotor changed. Was also told compression was good. What else could it be. Please help running out of $$$$$$

SOURCE: 2001 Chevy Astro Van

buy a Honda or Toyota, they work

SOURCE: 1994 chevy astro van awd

underneth the intake manold is were your fuel injector poppet nozzles are, more than likely the fuel line hose that goes thru the back of the intake is split and leaking fuel underneth the intake manifold if you check the fuel pressure you will find that the fuel pressure will drop down to 0 psi as soon as the fuel pump shuts off and it should hold pressure

SOURCE: 98 Chevy Astro van AWD

I'd check for vacuum leaks next. use a spray can of intake or brake cleaner. spray around vacuum lines, manifold gaskets etc. if the rpm increases you found a leak.

SOURCE: 2005 Chevy astro van, 4.3L A/c, Blower motor,

It could be a bad blower motor - tap on the blower motor with the end of a hammer when you have the switch in the on position - if it comes on then it is a bad blower motor. If it doesn't come on I would check to make sure you are getting power and ground to the HVAC control head.

SOURCE: 2000 astro van running bad

gm has a tecnical service bulleten out it affects all astro s and blazer s remove distrbuter cap and rotor clean out breather holes in base of dist 2 total replace with new cap and rotor 70dollars for both moisture builds up in dist cap causing the problem.