The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Sputtering under load

whtgmc68 · 11-02-2019, 12:21 PM

I had the same issue with my truck when I first bought it when I lived in CA in 2010. It would run great one day and then bog down and nearly stall the next. I was tinkering with it anyway so I put on a new carb, converted to electronic ignition, changed the fuel filter and put on a new fuel pump and nothing worked. Swapped out the fuel tank and never had another issue and the truck ran perfectly until I pulled the 350 for my 383.

You would not believe the amount of sediment that came out if the old tank! I guess it would slosh over the feed line sometimes and block the flow of fuel.

11-02-2019, 12:21 PM	#12
whtgmc68 Registered User Join Date: Oct 2011 Location: King, NC Posts: 63	Re: Sputtering under load - quick help pls I had the same issue with my truck when I first bought it when I lived in CA in 2010. It would run great one day and then bog down and nearly stall the next. I was tinkering with it anyway so I put on a new carb, converted to electronic ignition, changed the fuel filter and put on a new fuel pump and nothing worked. Swapped out the fuel tank and never had another issue and the truck ran perfectly until I pulled the 350 for my 383. You would not believe the amount of sediment that came out if the old tank! I guess it would slosh over the feed line sometimes and block the flow of fuel.