Question about 1982 Ford F 250

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1976 f350 with 1978 ford 460 dies or runs really bad when hot

Runs great cold most of the time but runs bad or stalls out a lot when at operating temp. choke is operational, put new ignition box ,pick-up coil,wires,plugs,cap,and rotor,fuel pump,and filters checked the jets in carb and flow is accurate,using a 4 barrel motorcraft with vaccum secondarys, compression check turned out perfect,and pressure check showed no leaks(in heads).truck does not over heat . sounds great when cold. at operating temp it feels like it is running out of gas i push the accelerator pedal to the floor and it rockets off and then i let up on it .it back fires,misses,and wants to quit running.only does it at operating temps though. any info on this would be greatly appreciated.

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Sounds like its vapor locking,try a vented gas cap,or a clothes pin on your fuel line close to the carb.

Posted on Jul 22, 2009

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You have a bad float and needele valve buy the kit $16.00 dollars and a new float $12.00 and you will have it running like a top, you may need vachum advance and clean the EGR Valve.

Posted on Jul 22, 2009

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Hello Donn,

UN-fortunately 1988 is WELL before the OBD
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So DAYS can be wasted looking for commonality...
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Rather than assuming your spark, timing, fuel, ECU...
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I would suggest that if you SATURATED YOUR
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and opened you EXHAUST ahead of your catalytic
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Obviously DANGEROUS to operate in that condition... at
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If you decide the job is a bit too much... at least
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Try rockauto
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1988 FORD 350 7 5L 460cid V8 Catalytic Converter RockAuto

1988 FORD 350 7 5L 460cid V8 Muffler RockAuto

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1991 pontiac 6000 6 cyl stalls on acceleration This situation varies, sometimes it stall when your just barely starting to accelerate and other time I can accelerate a lot more with no problem unless I...


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1988 F-250 460 engine stalls when dribing down the road


On older, carbureted engines, cold stalling (and hard starting) is most often due to an automatic choke that is sticking, misadjusted or broken. Cleaning the choke mechanism with aerosol carburetor cleaner may free up the choke allowing it to work properly again. If the choke housing as an electrical heating element, the element may not be receiving voltage when the key is on, or the element may have burned out (check resistance with an ohmmeter).

Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold

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