Question about Ford F-100

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F100 pickup stalls out when coming to a stop. It restarts and drives fine. I've rebuilt the carb., changed the fuel filters and line, and replaced the gas tank and sending unit. What am I missing or do i need to check the carb. float?

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It might be the float but if you don't have any trouble getting the truck up to speed then it's likely fine. The trouble is more likely to be in the idle circuit. The curb idle should be 500 to 750 RPM depending on if it's standard or automatic ( higher for auto). If that's okay then you may have to play with the idle screws. Turn them both the same amount, 1/4 turn at a time. Turn them once and then rev the engine 2 or 3 times and let it idle down suddenly. You will have to re-adjust the curb idle to keep it at the right spot as well.
If the truck is an automatic, once you have it set up so it runs right then put it in gear and try again although that will probably only need the curb idle adjusted if it stalls. hope this helps.

Posted on May 09, 2010

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Here is an image of the wiring diagram: Click Here
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1980 F100 with a straight 6 cyl. Won't idle.


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