Forum Discussion
Normk
Jul 01, 2012Explorer
460 Ford with fuel injection?
Likely over heating of fuel and vapor lock. Lots of other possibles including intermittent ignition module failure due to heat, fuel pumps often behave in that fashion when about to die. A good tech will be able to use an oscilloscope to look at the current profile for the fuel pump which may point to a pump issue but these things are tough to diagnose if the problem is not manifest.
If fuel injected the possibility of vapor lock is less than that of a carbureted system because the fuel pressure is higher and therefore the fuel vapor point is also higher.
If you have not located the fuel cut-off intertia switch, now is the time to do so in case this happens on hitting a bump but will not be the issue in this case because it will not reset itself.
Likely over heating of fuel and vapor lock. Lots of other possibles including intermittent ignition module failure due to heat, fuel pumps often behave in that fashion when about to die. A good tech will be able to use an oscilloscope to look at the current profile for the fuel pump which may point to a pump issue but these things are tough to diagnose if the problem is not manifest.
If fuel injected the possibility of vapor lock is less than that of a carbureted system because the fuel pressure is higher and therefore the fuel vapor point is also higher.
If you have not located the fuel cut-off intertia switch, now is the time to do so in case this happens on hitting a bump but will not be the issue in this case because it will not reset itself.
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