spiffyfish

ive looked all over and cant quite find a thread with this exact issue. i have a 94 f150 with the 4.9, the motor in it was bad so i swapped it out with a 95 motor and kept the original 94 harness. now i my #4 fuse blows as soon as i pull the light switch halfway out. found out that the previous owner had put a 30a fuse when it should be 15a. they also had shotty wiring on the radio (i have fix this before the swap) and they also installed a power brake of witch i have now cut and capped off. i also removed the trailer lights jumper and i unpluged the whole rear wiring at that spot after. still no luck. really need this fixed by the end of the weekend.

forgot to mention that i also installed an after market tach. i shared ground and ign with the radios. i tapped into white with blue stripe on headlight switch for lights. then the negative wire right off the coil for spark

PLEASE HELP!
-thanks

spiffyfish

front turn signal socket was the cause i have fixed it and all is good