Let's not get a panic started here. The power supply for the dash display
is an electronic oscillator which makes noise whenever the dash gauges are
showing data. You can hear the noise very strongly if you have the AM
radio on, but those with very good ears can hear the power supply "hissing"
even without the radio on, especially if the engine is not running. The
reason it stops when your butt leaves the seat is that it thinks you have
left the car, and shuts off the display. These computers are clever, but
you can outsmart them if you try.
This is not the noise Neil is talking about, I don't think - but listen to
what he says, of course.
Dick Benjamin
----- Original Message -----
From: "Rob P" <fristpenny@xxxxxxxxxxx>
> Mine '83 makes some sort of a hissing sound whenever the gauges are "on."
> Meaning, whenever you sit down so that the gauge faces come up. If you
pick
> your behind off the seat the noise goes away. I thought (hoped) it might
be
> normal. Is this the noise you mean?
> Rob
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