I have a 97 CR-V (125K miles) and it won't start. This happened once
before fairly recently and it finally started by just keeping the key
turned for a rediculous amount of time. Then it was fine for a while.
Now it won't start again and doesn't even make an effort after many
minutes of leaving the key turned.

When I popped the hood, I could hear a buzzing sound and found that it
was the Idle Air Control valve. When I pulled the plug to the valve,
the buzzing stopped. I'm inclined to buy a new IAC valve, but am
wondering if this is a typical failure mode or whether it could be a
symptom of something else. Or does the IAC valve typically buzz and I
just never heard it.

Thanks.

-jeff