1973 RS Z28 TACH Problem


Veteran Member
Aug 18, 2010
Ocala, Fla
my Tach just quit working. does not move when key turned on, does Nothing when Running. What is there to "Check" before I have to pull the circuit panel off the back of the gauges ??? Thanks. * What years Tach will fit ??? * car is orig 1973 Z28


Staff member
Lifetime Gold Member
Feb 26, 2004
Bloomington, MN
Go back and read the thread you started a month ago.

If it doesn't move with the key "On"... It's probably a power or ground connection.

I believe a 70-78 tach will work and fit correctly.
You will want one with the correct "redline".

And be sure it's a V8 tach if you do need to replace it. (A V6 tach will read incorreclty.)