Make sure battery has a full charge and battery connections all good. Positive and ground connections. Use a test light at your fuse box. Fuses 1 4 8 12 16 show to be hot all the time. check for voltage using the test light. If nothing, have to track voltage from positive battery post. Ground is very important as well.
You could have problem with ignition switch? The ignition switch is spring loaded from crank position?
SOURCE: remove parking light unit from 1990 Ford F150
remove the column covers (upper&lower) you will see the screws holding switch to column
SOURCE: 1990 ford f-150 nothing happens when ignition is turned on
Solenoid was not mentioned as replaced.
If it was not part of new starter...that's the culprit.
Ignition switch (smaller wire) activates the solenoid (heavier wire) which in turn activates the (high current) starter.
SOURCE: 1990 FORD F150 IGNITION SWITCH PROBLEM
sounds like something in the housing where the tumbler rests. might want to try putting a use column in with the new tumbler. only an idea. they are a pain to rebuild.
SOURCE: 1997 Ford Taurus ignition switch was jammed and
the ignition switch is located under the dash at the bottom of the steering column.suspect a fault in the linkage connecting tumbler to switch.
SOURCE: F150 ford truck 1990 key wont turn over engine new ign. switch
we have 1998 ford f15 we replaced the ignition and it still wont start the truck,, the key turns over now and the radio and everything comes on but it wont start, what is wrong???
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