1980 corvette tach issue
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2nd Gear
Joined: Jun 2016
Posts: 2
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From: north huntingdon pa
1980 corvette tach issue
I am new to forum and would like to first say hello. next get some advice. I have a 1980 corvette that has recently developed a non working tach. I have troubleshoot the unit according to a guide by Willcox corvette. I am getting power to the lugs behind the unit along with a good ground and continuity on the 3rd lug which is the signal lug. Also when I turn the key on the unit zero's itself our. the circuit board looks good, no dark marks. The distributor is giving out a signal since I put it on an external tach and can see the RPM's. I then used the same wire, going around the tach filter and still no movement on the inside tach. What now? Help!!!
