Maybe he should have it painted again, and it'll go back to normal...just kidding
. There is a diagnostic plug-in under the radio area of the dash. If you know a repair shop or dealer in your area that has the right diagnostic set-up for that truck, it might be worth taking it in...even if it gets expensive. I had an 83 Silverado 4x4 and it was an electrical mess, but it worked decent enough, so I left it alone. These trucks have wires upon wires that seem unnecessary. I guess you could say the 80's were the "infant" years of the electronic/computer cars.