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99 chevy 5.7

Richard Stranz

By Richard Stranz
in Ask A GM Technician

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Richard Stranz New Member

Richard Stranz

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Got a 99 chevy 3500 express with the 5.7L vortec. Truck wasn't running replaced the spider injection system and now it will start but dies moments later. I'm out of ideas on it, and help would be appreciated 

Jsdirt Senior Enthusiast

Jsdirt

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That system is super picky about fuel pressure - should be 58-62. Any lower than around 52 (depending on your gauge) and it just doesn't work.

tlaw91 Enthusiast

tlaw91

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Posted
That system is super picky about fuel pressure - should be 58-62. Any lower than around 52 (depending on your gauge) and it just doesn't work.

Probably needs a fuel pump too


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