have 88 f150/5 speed o/d strt 6 cyl, while driving it cuts on &off like the ignition is being turned on & off & studders real bad. Have replaced fuel filter but it feels like electrical, not fuel
check fuel pump ground and voltage check air cleaner.
distributor connections? spark plugs and connectors? possible timing issue due to misplaced order?
I also have an 89 ford f150 with the 5.0. Before spending a lot of money, jump the wires to the fuel pump just inside the frame rails under the driver door. Several fords that I have worked with fail at the relay controlling the fuel pumps, fore and aft. (You have two pumps, one on the rail and one in the fuel tank.) If the pump powers up, replace both the relay and the connector. Corrosion will cause the relay to fail.
Looking for a Used F-150 in your area?
CarGurus has 209,424 nationwide F-150 listings starting at $895.
Search Ford F-150 Questions
Ford F-150 Experts