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Carson City, NV
I ran into a similar situation with a small pickup. What I found was that the electrical pin for the horn and the contact ring under the steering wheel was devoid of any lubricant, and as the wheel was turned, the friction between the ring and pin was causing a similar noise to what you indicate. In order to correct the problem, you have to remove the steering wheel, clean the brass ring and the contact pin. Then you need to lubricate the ring with a small amount of conductive grease that you should be able to get at any automotive store. Then just reassemble the steering wheel on the steering shaft.
The response to my question on the electrical assembly indicated that I might have to remove the key cylinder. Just how do I remove that part? I don't see any access to that part.
The electrical assembly on the back of the key switch is bad. In order to replace it, I have removed the lower panel, the steering wheel & steering column switch assembly, and the instrument panel assembly. The electrical assembly is secured to the back of the switch by two small screws. There is a aluminum crash bar surrounding the key switch. How do I access the retaining screws? There are no holes in which to put a screwdriver.