Question about 1981 Ford F 100
Hasbeen running fine then just wouldnt start anymore . has a new battery , alt, starter,silenoid,voltage reg, ignition all is new parts and havebeen tested what else can i do
This sounds like a telltale choke issue. You running carburated right?
If it is what i think it is you have a choke thermostat on the carb. If so check the votage on the wire and if you have power then the choke thermostat has to be replaced. you can do a manual set of the choke behind the carb just to see if this is the problem.
Posted on Sep 25, 2009
Check that you have power to the coil while cranking the engine Are you using the original power to coil wire.Make 100% sure the supply while cranking and running is 12v.Did you swap from points based dizzy to electronic?as the original wire for points was ballast resisted and only supplied 9v to the coil
Posted on Oct 19, 2008
Test your plugs, and make sure your getting fuel
Posted on Oct 19, 2008
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Posted on Jan 02, 2017
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about the only thing i can think of that will do this while trying to start is that starter remains engauged after engine starts , the starter motor draws a lot of power ,the most of any item in your truck. and if it remains running after start the alternator/voltage reg supplys it's power instead of the battery , and one other thing your model year (and a few past that) has a common problem with a little thing called a bendix inside the starter sticking due to carbon build up and yep the symptom of this is the starter runs on after you let the key go but there can be other causes of this happening so all reasons need to be looked at
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