Question about 2004 Chevrolet Astro

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WHERE IS THE CHECK VALVE ON A 2004 ASTRO VAN TO CHECK FUEL PUMP PRESSURE?

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It is located on the top of the engine in the piping that supplies fuel to the injectors, you will need a GM fuel press test gage to check it.

Posted on Sep 27, 2010

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You'll need to remove the engine cover. Once it is off you will see the two fuel lines that run into the intake on the drivers side right next to the distributor. The test port will be on the bigger of the to lines.

Posted on Sep 27, 2010

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