F 150 seems to be missing or something

Possibly a plug wire or cracked distributor cap. I'd take a spray bottle and while it's running (be careful not to get your body parts in danger of the fan) spray some water on the cap area. If everything seems fine, you could spray down each plug wire at a time. See if you find the culprit that way. For a vehicle so old, if you haven't done a tune up lately. It's probably a good time. Replace the distributor cap and rotor. Plugs and wires.

replace the injector in no 2 cylinder

did it happend right after you tune it up if not and it was there before check the egr valve try disconecing it then test drive it if it goes away replace your egr valve let me know if it dont work so i can try helping you

it could be crank position sensor, best solution would be have it on a fault diagnostic machine and see if it throws up a fault code

try a tune up plugs wires cap rotor fuel filter

clean MAF sensor in air intake tube.

http://groups.yahoo.com/group/villagerquest/

http://www.artsautomotive.com/japanese-non-hybrid/134-leaky-water-pump-causes-low-power-on-a-1995-toyota-corolla

The distributor cap and rotor should be changed if this does not help replace the ignition module located within the distributor Headers increase the local temperature near the spark plug boots make sure you have a thick high quality spark plug wire boot surrounding the spark plugs, an old timer trick is to start the truck up cold at night in a dark local and spray the plug wires and dist. cap with a light mist of water to detect any weakness in the ignition wiring, any arc outs see must be adressed.

It may be the O2 sensor. I know it's not the fuel filter, spark plugs, spark plug wires, Vehicle Speed Sensor, Dis. cap, or TCM.

YOU NEED TO HAVE IT SCANNED TO ISOLATE WHICH CYL. PROBALY AN INJECTOR OR CONNECTOR OR CRANK SENSOR LEAD RUBBING INTAKE