Bad plugs/coil/wiring
The number 5 engine cylinder is misfiring
Your engine may be misfiring. Check your fuel and ignition systems. Another possibility is that you have a worn engine mount that is allowing horizontal movement of the engine.
start with wires
If your check engine light blinks with the engine running it means that a misfire has been detected . Your F150 needs to be scanned for trouble codes in order to diagnose which cylinder or cylinders are misfiring and then repaired
what causes hesitation on ford f150 truck
There could be loose rings in the engine that would cause this. The valves on the engine may also be chattering.
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
You can start with the 02 sensor. if that does not fix the problem then you may have to consider the ECU.
what carbutor model engine fit in a 1994 ford f150 with a 5.8 lighting engine
Sounds like a bad thermostat. Easy do-it-yourself repair.
i seriously doubt it. there have been several engine modifications to the the Triton v8s since 1999.
Your throttle linkage may be sticking. You can try spraying it with wd40 to loosen it up usually near the carburator.