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Originally Posted by tazbaby36
my truck won't start, it cranks but won't turn over. I have changed the fuel filter, camshaft sensor, cap and rotor. It ran fine for a few days and now won't start. Can someone please help.
it's getting spark and fuel.how would i check to see if its getting air?
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CRANK = "TURN OVER" Same thing. "Firing" is when a fuel/air mixture is ignited and the engine produces power and either runs or tries to run.
Given that it's a '96, it's most likely that it is a CPFI fuel system. While you might be certain that there is fuel in the tank, and that the pump is running, it's not that easy to be sure that the injectors are operating and that the engine is actually getting fuel during cranking. Unless you have pulled the upper plenum and obsrved injectors while cranking, or have evidence of fuel being administed to cylinders (like wet spark plugs) it's difficult to determine if the poppet injectors are operating.
It will be far easier to verify that there is spark at the cylinders and that there is proper fuel pressure during cranking, and then verify that the injector signals are present. Through that process of elimination, you can narrow the possibilities.
