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Q: Starting Problem on 1995 Chevrolet G Series Van (G20)

First thing in morning van always starts easily. Once engine is warm wont start. Engine turns over however just keeps cranking. If I hold accelerator to the floor as if engine were flooded it will start. Cold engine starts warm engine wont. What should I look for?
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This may be a fuel pressure issue. When you turn off the engine after it is warm, it is important that pressure remains in the fuel system to prevent the fuel in the lines/injectors from vaporizing. So check the fuel pressure with a warm engine, and when you turn off the engine fuel pressure should remain in the system. If the pressure drops, then you have a bad injector (leaking) or a bad fuel pressure check valve in the.
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