cranking problems

[spencer morris]

wat up everybody i have a 94 explorer and i seem to have a problem with it cranking. sometimes in the morning i have to turn the key 3 or 4 time for it to start and when you drive for a min it doesen't want to crank back up untile a hour or 2 later and sometimes when it does it does a sputter type of crank and doesen't want to idle for some reason. I have changed spark plugs, fuel pump & fuel filter, the coil is new, the starter, crank positioning sensor, battery, purge valve, and checked vacume lines, I like the truck but starting to feel like its not worth it. any tips will help.

 

[voiqwin]

spark or fuel

Does it crank and not start or not crank at all?

When it is running rough; sputtering, poor idle, is it due to improper spark or fuel? Have you watched a timing light to see if it flickers when running rough? If the timing light doesn't flicker try squirting a shot of either into the intake to see the idle speed evens out. Let us know what you find?