87 f150 no start

got a 87 F150 doesnt turn over at all . replaced ignition switch , checked all fuses, replaced celenoid, if u jump celenoid starts everytime just wont start with key. all lights and everything turns on with key also anyone got ideas?

Hi, just read your post, you say all the fuses are good, you should have a red/light blue wire going to your clutch interlock switch(if manual) or neutral safety switch(automatic), check for voltage. If so, check the opposite side of the switch with the clutch depressed(manual) or in park or neutral(automatic), for voltage. If no voltage replace the safety switch or clutch switch, whichever you have(provided you are getting the supplied voltage to the switch). If voltage there then check for voltage on the same color wire at the solenoid . If not there trace the wire back until it runs in the passenger compartment under your dash for breaks in the wire.

got a 87 F150 doesnt turn over at all . replaced ignition switch , checked all fuses, replaced celenoid, if u jump celenoid starts everytime just wont start with key. all lights and everything turns on with key also anyone got ideas?

" replaced celenoid, if u jump celenoid starts everytime just wont start with key"

Starter selenoid? starter relay? is that what your talking about? if so one way to bypass and fix run a new ignition/key to starter relay (had to do it to my 88 as well)