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

Asked by Apr 30, 2012 at 01:30 PM about the 1988 Ford F-150

Question type: Maintenance & Repair

3 Answers

565

check fuel pump ground and voltage check air cleaner.

285

distributor connections? spark plugs and connectors? possible timing issue due to misplaced order?

145

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.

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