Problem with starting car

Sometimes my car starts when I turn over the key once. When it won’t start, if I jiggle the steering wheel several times it will start. (When it’s cold or humid it rarely starts without first jiggling the steering wheel). I’m not locking the steering wheel and I don’t have trouble turning over the key. When the problem first developed I was told it’s not the battery, alternator or starter. (I have a Toyota Tercel so the key goes into the steering column). I’ll be contacting a mechanic but I would appreciate any feedback you might offer. (A few months ago a shop had it a whole day but couldn’t get it to act up; then the problem went away for a few months).

Sounds like you may have a bad ignition switch.

Thanks for your feedback; I’ll have that checked.