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Re: 2000 astro - engine died, won't start
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The fuel pump circuits are designed to energize the fuel pump continuously when the key is turned to the START position. When the key is turned to the RUN position the fuel pump will operate provided the engine is running. If the engine stalls, or is not running for any reason, the ECM will shut off the fuel pump after approximately 2 to 3 seconds.
Fuel pressure test:
Install fuel pressure gauge. Turn the key to the RUN position, (do not start the engine). While the fuel pump is running, fuel pressure must be a MINIMUM of 60psi. After approximately 2 to 3 seconds, the fuel pump will shut off and fuel pressure must remain above 55psi for several minutes.
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