alternator

 

would not cause it...if anyone has a 90 dak will you look at the relays on your driver side finder and with a test light hooked to the positive side of battery prob the blue wire while the key is on and let me know if the light on the test light comes on. mine does and i dont think it should.because that would make it a ground but i dont know..

 

still tracing wires but still have no power..i got power to my lights turn signals and everything else just not to radio and nothing when i try to start it..i found some burnt wire that lead down to trans and replaced them and now the blue wire on my relays are no longer grounds for some reason..I NEED HELP..trucj just died on the way home one day and wont do anything now...good ground good connections on battery good battery, new igntion switch all fueses are good....