Sounds like the ignition switch has developed an internal fault in the contacts. Either something conductive or more likely one of the spring loaded contacts inside has broken and is shorting the start circuit, or the gear teeth on the outside of the unit have started to break free. The issue could cause damage if it decides to activate the starter while the engine is already running.
Replacement of the switch isn't super difficult but it requires a bit of care with the connectors as they are easy to damage. The first step would be to remove the battery ground cable. Then you remove the upper and lower trim covers from the steering column. With those off you can release the wiring harness connectors and retainer strap shown in the 2nd image. Next you carefully remove the alarm connector as shown in the 3rd image. Then you use either the special tool or a small screwdriver to release the retainer clips for the switch and slide the switch off.
Before installing a new ignition switch, the lock cylinder gear has to be rotated counterclockwise until it hits the stop. Counterclockwise from the drivers perspective. In order to rotate the lock cylinder all the way the key and lock cylinder need to be removed. Once the key and lock cylinder are removed, rotate counterclockwise with a screwdriver.
Now slide the ignition switch into place so it latches. Then you can reinstall the ignition cylinder and test that you can move the switch through all positions without binding. If you can then you reconnect the wiring and test the switch operation. If it all works properly put everything back together.
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Tuesday, July 13th, 2021 AT 8:29 AM
