Scrambler82
Veteran Member
I ran a ground wire from the battery last night to what I think is the ground for the tach with no luck. I can't help but think it's something simple but I'm stumped. I'm not ruling out a grounding problem either.
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You may need to look over all of the connections in the Dash area, not only the dash connection what about the frame ground in that area, you did say a few of the gauges were having problems... so you need a common point for all gauges... i.e. GROUNDS or power !
Disconnect, clean, and reinstall all of the gauge connectors, put some conductive electrical paste on the connections and a little in-between the Nut, Lug, and Mounting Point !
Electrical problems are a hard thing to follow and fine, some maybe not even related to the source of the problems. I had a Mustang with Fog Lights, I got a short where my tail lights and license plate lights were on all the time. I went though the drill on the rear of the vehicle thinking taillights, and couldn't find the problem. I broke down and took it to a local electrical shop and WHAM-BAM he found a shorted wire in my Fog Light Switch.
How did the Fog light Switch effect the Taillights, not sure but the problem was done with. So I am thinking are there any other electrical problems, that pop up once in a while, small ones, you may not think they are related but you will only know when they are fixed !
After reading a related post, your tach runs off the alternator, is the alternator working ok, putting out as needed ?
Also, do the gauges that sometimes don't work, not work together or at different times ?
Ltr