Factory Digital Tach Bad ??????

[PHANTASM]

my tach lights all the way up when running(shows like 5k rpm)
everything else works fine.

any suggestions?

 

[my85grandnation]

Check with Caspers Electornics. They can fix bad tachs. They say you know a tach is bad when you turn the key to on and it jumps up like yours does. heres a link to the page about the repair. https://www.casperselectronics.com/..._Code=103070&Category_Code=8485GN_Performance