Fuel problem or timing problem i had same problem on 94 aerostar found out the dist. was bad and timing off by 20* bought used dist. adjusted timing runs beautiful
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The ignition system on your 5.0L uses a distributor type system and will include the following components:
Ignition control module (ICM). Depending on the year of your specific Ford, it'll have a inner-fender mounted ignition control module or a distributor mounted ignition control module. hot sure which you have.
Ignition coil. you replaced it.
PIP (Profile Ignition Pickup) sensor. This is Ford's name for the crank sensor and is mounted inside the distributor. The most common name for this component is the pick up coil.
Distributor cap and rotor. you replaced
Spark plug wires. you replaced.
The thing to keep in mind about the ignition system is that all engine cylinders must get spark and the one thing that will stop the ignition system from creating spark on a wholesale scale is a BAD crank sensor.Have you pulled a plug then using some insulated pliers grounded it to the vehicle and turned it over to see if you have spark, that'll tell you alot.takes two people of course.Best of luck and hope this helps.
I saw what you replaced, didn't see any testing? Any applicable trouble codes? Use a gage and check proper fuel pressure, TBI--9--13 psi. As an example, 5 psi fuel pressure makes a nice looking injector spray pattern, but, 5 psi won't start and run a v8. My opinion.
Could be other issues.
you said you repl dist cap that means you don't have a crank sensor you have electronic ing module. remove your elec ing module have it tested most auto parts stores could test your module, or check your coil at the neg terminal. should have power. if not you lost your primary volt from your batt.your secondary power is coming from your electronic ing module from the module to the pos terminal on the coil, when the eng cranks,from the coil to the dist cap , from the dist cap center to the rotor then out to the plugs,this all happen pervided the timing belt or timing chain is ok. the cumbustion chainber needs 3 things , thats fuel, air, and spark.
It could be that the ignition module is defective and causing this problem.If it's the original ignition module it may be time to replace it. The ignition module can be tested by your local Shucks or Auto Zone usually for free, The module when its starting to go out will work fine until it warms up, it will then quit working because the coils inside of it short out, until it cools down. If the module is completely gone there will be no spark at any time, The module is inside the distributor under the rotor held in by a couple of screws,
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