ckenny23

hi i have a 2003 chevy silverado 1500 4.3 v6 sometimes whens its cold it doesnt like to start and idle but most of the time it doesnt like to idle when its warmed up and you shut it of then you go to start it again and it doesnt want to idle and tgwn dies and if u drive it long enough it goes away. i put in injector cleaner and premium gas and my friend has a fuel presure sensor and when i tested it it was at 54 psi but it read 54psi when it was running normal could it still be the fuel pump?

silverado00

yeah its the fuel pump i was having the same issue change the fuel fillter and fuel pump out for better throttle response and power upgrade to the 6.0