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Q:

fuel pressure on 1999 GMC 1500 Pickup

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
what is the correct fuel pressure with key on and running in ideal
(1) Answer
The fuel pressure spec for 5.0L and 5.7L V8 engines is 60-66psi with pump running and engine off, 55-60psi with key on after pump turns off. Fuel pressure should hold steady after turning the key off.