Hot Start Problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

blown240 · 02-10-2011, 02:56 PM

This is on a 66 GMC with a 305 V6, 2bbl carb. It has new Cap/rotor/coil/wires/ and petronix box. The carb was rebuilt about a year ago. Also new fuel pump and sending unit.

When my truck is cold it will start instantly, choked or not. But once it get warm, its tough to start. It will crank for 10-15 seconds before anything and then when it does fire, its tough to keep going for the first 10 seconds. After that, it runs perfect, though the idle is a bit high.

Any thoughts? I am assuming carb, but am not sure.

Thanks

02-10-2011, 02:56 PM	#1
blown240 Registered User Join Date: Jan 2011 Location: CA Posts: 772	Hot Start Problem This is on a 66 GMC with a 305 V6, 2bbl carb. It has new Cap/rotor/coil/wires/ and petronix box. The carb was rebuilt about a year ago. Also new fuel pump and sending unit. When my truck is cold it will start instantly, choked or not. But once it get warm, its tough to start. It will crank for 10-15 seconds before anything and then when it does fire, its tough to keep going for the first 10 seconds. After that, it runs perfect, though the idle is a bit high. Any thoughts? I am assuming carb, but am not sure. Thanks



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