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It should have 60 to 66 LBS. NO MORE AND NO LESS. are you will have problems.
And yes that is why it won't start. Replace fuel pump.

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Q: What is min fuel pressure to start a 2001 silverado 1500 4.3 v6. my truck only shows 38 psi on a fuel pressure gauge... wont start. only if you pour fuel in the throttle body?
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