Pre 84 Trucks 1st gen pickups

Fuel pressure

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Old Dec 15, 2014 | 03:54 PM
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Fuel pressure

my 83 22r likes to stall at idle so I'm trying to find the problem

How do I check the fuel pressure on these trucks??

Thanks!
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Old Dec 15, 2014 | 06:08 PM
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you can put a gauge after the pump and before the inlet on the carb to check pressure


.
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Old Dec 16, 2014 | 09:25 AM
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The fuel cut-off solenoid is a common problem with these guys. I had the same problem, and decided to just ground it full time. I took the white wire that goes to the carb (1 of 4 for my carb), cut it, then connected it to the negative terminal on my battery.

Here's a search I did on google for the fuel cut solenoid: https://www.google.com/webhp?sourcei...t+solenoid+22r
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Old Dec 16, 2014 | 01:23 PM
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I read some other stuff from that search and seems reasonable. So I just cut it and ground into the battery?
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Old Dec 17, 2014 | 02:50 PM
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Yep, just cut the white wire coming from your carb, then splice another wire to it and hook it up to the negative terminal. That's exactly what I did.
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Old Dec 28, 2014 | 09:14 PM
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Originally Posted by Juhjuhjinx
How do I check the fuel pressure on these trucks??
Fuel pressure is not what is important in an engine with a carburetor. Fuel volume is.

You would need to check the fuel level in the float bowl sight glass to make sure that the fuel is at the correct level during the stall condition.

Last edited by slow-mo; Dec 28, 2014 at 09:16 PM.
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Old Jan 9, 2015 | 09:20 PM
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If we had more info we could help more. If he has a Weber, fuel pressure could choke it out if it's too high and shoving fuel past the seat. If it's a lean stall then you would be looking at volume.

Easy test, unhook your fuel line from the carb and place it in a jar. Have someone crank the truck for you, or turn on the key if you have an electric pump. Observe how much fuel comes out. If it trickles you have a volume issue. If it flows your pump is fine.

Let's do science!
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