I m new but need help eng. dies when put in reverse and will not start up againe found blown fuse under hood replaced started right up. It only does this in reverse and on step hills any help whould be nice 1999 5.4 4x4 reg cab short bed.

 

Hoe about what fuse you are replacing ?

 

its the small 15 amp fuse it controls the mass air flow and security and a bunch of other things ill look closer and let you know the exact one in a min