1999 peterbilt 379 with n14 cummins push start button will not always engage starter.sometimes you pust the start button and you can hear a click behind the dash but wont start,sometimes it will start.basically im wanting a wiring diagram for the starter system
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Well either something is going on with the ignition switch or the starter solenoid
Here is the wiring diagram click here
when it doesnt start i have tried jumping wires on push button with same result,only a click.
when it doesnt start i use a jumper wire to jump the post on the starter solenoid to start.does this still mean the starter solenoid could be bad