So I cleaned the Maf, throttle body, air filter, new plugs, wires, battery and fuel filter. I just can't figure it out sometimes the truck won't idle unless I have my foot and the gas. Sounds like not getting enough fuel I can hear the fuel pump buzz. I'm just stumped. Please help

 

Welcome to the forum.

Go to the Silverado section of the forum for answers. Check fuel pressure as it sounds like fuel pump has gone Tango Uniform.