Speed related buzzer?

[Adam Connell]

Well I was going fast... very fast... somewhere over 85 and I got a strange buzzing sound from the dash.... Of course I immediately slowed down as it sounded like something bad... So what is this buzzer and what is it telling me?

 

[Renthorin]

I vote for spedometer cable or speed-detonated bomb, more likely the first.

 

[Adam Connell]

Well my speedo does bounce...

 

[Renthorin]

I think they all bounce a little. They have to when they cover THAT must distance from left to right.

On my Cutlass, (same setup) when it got cold out the cable would buzz a lot. I was told the cable runs inside a plastic tube and you can lube it but I just turned up the radio

 

[mikestertwo]

Speedo cable needs cleaning and lube.