Tachometer problems
Thread Starter
Burning Brakes
Joined: Apr 2000
Posts: 1,076
Likes: 0
From: Dixie TN
Tachometer problems
I bought a 79 recently. The tach did't work when i bought it. The other day it starts working messed up. Idling at 3500 and if you just touched the gas it pegged it. I don't know much about wiring where do i start looking for the problem? Is there a link that would help? Thanks in advance. :conehead
Safety Car
Joined: Mar 2000
Posts: 4,078
Likes: 27
From: Northeast South Dakota
Re: Tachometer problems (A78Corvette)
I'm no expert either, but I understand from conversation here that they have a circuit board on back that goes south and needs replacement once in awhile. Not sure, just remember seeing that.
Instructor
Joined: Jul 2001
Posts: 189
Likes: 0
From: Berkeley Heights New Jersey
Re: Tachometer problems (Dalannex)
Mine did not work at all. Stuck at 1500 RPM's. While redoing the interior, I pulled the dash panel out and removed the speedo and tach. I found the circuit board fried. I replace the board and ran a 12V current to it and reset the needle and it now works just fine. It you remove the tach, be sure to drop the steering column or else you will crack the pad on removal.
Racer
Joined: Mar 2002
Posts: 369
Likes: 1
From: Nowhere
Re: Tachometer problems (A78Corvette)
Well, my tach was not working when I bought my care as well. It would try to work, but never really worked correctly.
I replaced the Tach Circuit Board in the Instrument Cluster, and it solved all my problems. I did some research on this, and the tach for 78-82 was having burnout problems, and this was a common problem.
I bought my replacement through Ecklers for 69.00 or so. But I think the other vendors had them as well.
http://www.ecklers.com http://www.corvettecentral.com http://www.corvetteamerica.com
I don't think anybody else sold this to my knowledge.
I replaced the Tach Circuit Board in the Instrument Cluster, and it solved all my problems. I did some research on this, and the tach for 78-82 was having burnout problems, and this was a common problem.
I bought my replacement through Ecklers for 69.00 or so. But I think the other vendors had them as well.
http://www.ecklers.com http://www.corvettecentral.com http://www.corvetteamerica.com
I don't think anybody else sold this to my knowledge.
