Fuel supply issue

Ken Boellner

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Arizona
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Ken
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1980
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C10
Engine Size
302
Evaporation from Ethanol in the fuel. Common problem when it's hot and it sits for a couple days.
 

AKguy

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Alaska
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Randy
Truck Year
1981
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K30 Crew Cab Silverado
Engine Size
460
Evaporation from Ethanol in the fuel. Common problem when it's hot and it sits for a couple days.

“Hot” is typically not encountered in these parts!
 

GTP51

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Melbourne Australia
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Geoff
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1987
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R10 Silverado half ton Stepside
Engine Size
355
Possibly fit a fuel filter in the line near the carb the one way filter type so you don’t get bleed back to the tank.
 

Raider L

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Shreveport, LA
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William
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1974
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C10
Engine Size
355
That's a good idea that @GTP51 has. Mechanically stop the fuel from draining back to the pump.
Also, @Old60Driver has a good idea of what to look for when you take it apart. And these other ideas are good to. They all use q-jets and have had these problems. It's got to be one or more of those things.
 

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