I'm trying to determine what could be causing this. A few days ago my rear ac blower stopped working. It was a slow death where it got progressively weaker over the course of a few hours. Although I found that failure method odd I wrote it off as whatever.
Yesterday and today the truck has been showing very unusual startup behavior. It will choke as if it has weak batteries, then suddenly start turning like a champion until it starts. If it starts to sag on key turn and I let off immediately, then try again, it will usually turn perfectly.
Today the front fan has started failing in the same manner as the back one. This happens while the truck is running or not.
The last odd potential symptom is that I happened to peak at my voltage meter yesterday at a random time and noticed a big sudden hit to my voltage. It dropped from 14 to 13.5 for a few seconds and then back again with nothing to prompt it, and I've never seen that happen before. Based on things I've done I can say that the .5v drop is about a 1kw power draw.
What the **** is wrong with my truck.
As a side note I'm heading to the terminal immediately because my instincts tell me the electrical system is becoming a fire risk, and they're giving me my new heavy hauling truck anyway as a result. I'm still curious how this particular set of events can be related.
*Edit voltage measured who knows where remains at expected levels while attempting to use both the front a rear fans that are barely functional now. Everything else, like lights, seems to work appropriately for the time being.