1990 GMC Jimmy k1500 TBI 5.7L 350 700r4 I just bought this truck a month ago and have been ironing outr some issues. Before I start I have read thru alot of threads I found oing searches , now I have to ask for myself. when I first bought the truck , the speedo and fuel gauge lights did not work. The oil/amp/etc lights do work. Now all the dash lights do not work. The fuel gauge is pegged about 1" past the full mark and goes down as far as the half full mark when its almost empty, so basically it fluctuats. Any ideas? I am going to try and remove the gauges and change all the bulbs aswell as clean the copper tewrminals and restretch them.