View single post by redracer
 Posted: 03-17-2020 02:51 am
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redracer

 

Joined: 09-10-2012
Location: BROOKHAVEN, Georgia USA
Posts: 654
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Online
yes, the tach must be grounded(this is actually one of the main problems with the fuel & temp gauge: the 10v voltage stabilizer has a bad ground contact between the housing/case and the sheet metal screw attaching to the metal backing plate).So pull the tach(and maybe the gauge panel--much more difficult) and do some preventative maintenance