Problem starting truck after sitting overnight.

[Rufas]

Originally Posted by bbrriiaann1973

Thanks for the info, so not having the choke hooked up will not put enough fuel at start up?

Because once it starts up it runs great for the rest of the day. Starting and stopping

That's correct. Hooking up you choke and adjusting it should solve your problem.

[geezer#99]

Originally Posted by Rufas

That's correct. Hooking up you choke and adjusting it should solve your problem.

It might solve your problem!
Could be you’re boiling the Fuel out of the bowl and need a heat plate.
FWIW the choke doesn’t add more fuel, it restricts the amount of air.

[bbrriiaann1973]

Ok I will try this! I never hooked it up because here in Phoenix you don't need a warm up period.

[CaptRMW]

...

[bbrriiaann1973]

Ok thank you I will go threw the whole fuel system

[CC69Rat]

The Edelbrock carbs are really sensitive to both heat and cold weather. They require a specific amount of fuel pressure, Edelbrock recommends their fuel pump, as someone else mentioned the heat plate, I would personally suggest a fuel pressure regulator too.

If after you connect and adjust your electric choke:

Try a fuel pressure regulator. Set it at 5 psi. - No more than 6.5 psi. If you have a stock fuel pump it could be dumping fuel too.

The Heat Plate that was mentioned is to keep the gas from boiling in the bowls. (vapor lock, hard starting in hot weather) Heat will radiate through the intake up into the carb and cause you issues too.


So: Electric Choke, Fuel PRessure regulator at 5 psi and/or install Edelbrock's AVS fuel pump, then get you a carb spacer / heat plate for it. You'll see a big difference in the performance of your truck, AND the carb overall. Fuel economy will increase too.

[Jrainman]

I am not a expert but a 600 CFM carburator on a 383 CI engine sounds small and if you have a cam that is on the larger side 600 cfms definitly would be very hard to set up . Also are you runing a stock fuel tank if so have you checked the fuel sending unit sock (filter screen) it may be clogged / rotted . and also do you run a fuel filter if so have you replaced it.

[El Dorado Jim]

Originally Posted by Jrainman

I am not a expert but a 600 CFM carburator on a 383 CI engine sounds small and if you have a cam that is on the larger side 600 cfms definitly would be very hard to set up . Also are you runing a stock fuel tank if so have you checked the fuel sending unit sock (filter screen) it may be clogged / rotted . and also do you run a fuel filter if so have you replaced it.

I have 600 cfm carbs on a 350, 383 stroker and 454, all work great

[rockyrivermark]

Originally Posted by El Dorado Jim

I have 600 cfm carbs on a 350, 383 stroker and 454, all work great

Did you get it figured out?
Mark
Posted via Mobile Device

[lovemy71s]

Should be able to get it to start if you pump enough times. We ran into this exact problem on a grain truck last year. Tried different carbs, different fuel pump, still the same problem. We mounted a clear plastic filter right at the carb to see what was going on. Sure enough it wouldn't even pump enough fuel to fill that little filter. Replaced the rubber line all the way back to the tank. Problem fixed immediately. Filter filled up before the engine even started. Had to be a pin hole somewhere in the line allowing the pump to suck air and not pump enough fuel. There was no visible signs of leaks. Most I can help