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Tach dies when hot. Why?
My tachometer will not run when the guage itself gets hot. This happens when sitting in direct sunlight for a period of time. When I start the car - nothing, it lies at 0. When I get driving and I run cool air through the blower it comes back to life.
As a control, I parked the car so that the dash was not directly exposed to sunlight. After a couple of hours it worked fine. Also this is not a problem on cloudy days or in the winter.
What would cause that? Is there a DIY repair? If it's an easy fix, I'll do it to avoid sending the guage off for $$ repairs. Thanks.
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Nate
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