No power in cab and won't crank after changing heater coil
Changed the heater coil. Had to remove dash. Now truck will not get power to
cab once back together. Battery is good. Can almost crank with holding screw
driver to side of truck. By not by turning key - no power. 1992 ford f150 5.0
Sounds like you missed some wiring connections, recheck your work.
by jumping the solenoid relay you are bypassing the ignition switch. Check all the wiring under the dash.
Check the plugs by the heater core area, you might've missed one on its not fully plugged in
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