When I purchased it, my 84 J10 had the classic gauge problem of a burned out 12 V to 5 V converter, made the classic repair of attaching a the small solid state device and it has worked flawlessly for months. Yesterday, the oil pressure and gas failed to register anything for 10+ minutes after starting instead of their normal gradual increase. Then they registered but I think they are registering at ~75% capacity, a full gas tank shows 3/4, what had been a normal start up oil pressure of 40 psi shows up as 30? By the way, when the oil and gas were zero, the temperature gauge still registered some. Anybody ever see this before? I did make a spare voltage converter so I will pull the dash unit and look for loose connections, etc, maybe replace the circuit altogehter with the spare.
Thanks, Marc