LT1-LT4 Modifications 1993-97 Gen II Small Block V8

fuel check valve?

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Old Oct 23, 2005 | 08:17 AM
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ricknbird350's Avatar
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Default fuel check valve?

does anyone know where the check valve is located at??? i replaced the pump and it still drops fuel pressure when it primes..
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Old Oct 23, 2005 | 10:55 AM
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The check valve is in the fuel pump, if it still drops pressure after a new pump you may have a leaky injector. What kind of fuel pump did you install? I recently replaced mine and had the same problem and ended up finding several very small holes in the teflon line the attaches the fuel pump to the metel lines that run out of the tank.
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Old Oct 23, 2005 | 04:10 PM
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i put a walbro 255lph in..i replaced all the injectors..i cant figure it out
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Old Oct 23, 2005 | 06:41 PM
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regulator maybe?
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Old Oct 23, 2005 | 07:18 PM
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nope its got a new aeromotive one...
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Old Oct 23, 2005 | 07:34 PM
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ok how bout gas cap? gasket doesnt seal pressure bleeds off thats the problem i had after installing my racetronix unit... or maybe the gasket from the sending unit is leaking.

Last edited by SmokedOutZ28; Oct 23, 2005 at 07:44 PM.
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Old Oct 24, 2005 | 12:09 PM
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- regulator

- injector

- fuel feedline

- pump checkvalve
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