Have 1994 Ford F150 5.0, 4 wheel drive,5 speed manual,keeps burning up ignition coils after about 100 miles of constant driving....truck dies, once it cools down it'll crank up again,change the coil and it's good for another 100 miles then starts this all over again.What could it be? Brain box is 2 yrs old.
after 100 miles of constant driving coil burns out