Problem with tach

[mheath717]

I have an 84 Cutlass with the factory rally guages. My tach has been messed up since I bought the car. At an idle it reads 2,000 rpm. It basically reads 2 or 3x what the rpm is. A friend of mine said that there is a 6cyl/8cyl switch on the back of the guage cluster that needs to be flipped. Anybody know if this is true? if not, what might be wrong with my tach?

 

[dudeface]

try this..........



http://tech.oldsgmail.com/eint_tach_fix.php


peace

 

[85 Cutlass Brougham]

Thanks for posting that! I am having the same issue with my tach and was thinking it just needed the shorting adapter fixed. However, I like his solution much better as it will be permanent.

 

[mheath717]

wooow... Man I think i love you... I was about to waste money on a autometer tach.. Preciate the information.