It seems that I somehow logged in under the other account I made the other day because I was locked out of my waynosworld account, even though this is showing me as rustytruckman, sorry, I will try to remember to log in as waynosworld next time.
As long as you unplugged them from the rest of the harness when you tested them then they are good, they cannot be plugged in.
Grounds can be an issue also, have you pulled on or have you removed any grounds?
The next thing you should check are the wires going to the alternator, make sure they are all tight, disconnect the battery if you do anything more than wiggle on them, there is one that goes to the starter, make sure them are tight also, if the main wire to and from the alternator gets loose(bad connection), stuff starts going down hill fast, it will run, but only as long as the battery lasts
Another thing I would do is start checking all the fuses, I personally would just replace them, but if the headlights work, you might be able to skip them, anyway once them have been replaced I would start the truck, now if everything works, great, now while it is running, start wiggling each fuse and see if anything happens, I had the former owner of my 85 720 put a wire in the fuse block where the fuse was supposed to be to run his aftermarket stereo, when I bought the truck from him he removed it, now the fuse makes a connection less than half the time, I am always having to wiggle that fuse to get the radio to work, even when it quits while I am driving it.
LowFlying720 wrote:OK I checked the fusible links and they all felt a little soft to me but they all checked out with power coming out of them. When I was testing them I even wiggled them around and twisted them to see if maybe they were broken but temporarily making contact but they were solid as a rock none of them even blinked.
When this started, at the same time that the alternator light came on, the turn signals and all of the gauges failed. The first time it happened it stayed off for about a day and then one time when I started it up everything was normal again but that only lasted for about 20 minutes and then it was off again and it's never come back again.
Is there a circuit or a relay that powers all those items that could have failed? I've checked all the fuses, none appear to be blown.