I own an 87 El Camino and the above issue recently arose. The key and lock cylinder were installed about 4-5 years ago when I purchased the vehicle at an abandoned car auction. When I bought the vehicle there were no keys, so I simply removed the steering wheel to gain access to the ignition switch and swapped out the lock tumbler. I can't recall the brand of the part I installed; it may be from NAPA. Regardless, I am hoping someone can advise me if this problem is related to the key and tumblers or whether I need to replace the whole ignition switch.
Thank you in advance.
Thank you in advance.