Four problems related to gasoline fuel system have been reported for the 1998 Ford F-150. The most recently reported issues are listed below.
1998 Ford f150 fuel strap has broken.
Beginning around 150,000 miles, my 1998 Ford f150 4. 6 l triton engine plugs begin to loosen or even come out. This problem occurs about every 50,000 to 75,000 miles therafter.
Gas rail leaks onto the manifold of the engine. Also, the "o" rings harden and the gas just starts leaking out and vehicle overheated. Consumer contacted the dealer, and they told him it was out of warranty. The consumer would have to pay for the repairs.
Fuel system poor performance, bad milage.