The company I drive for had several of those gnarly looking Sanfred & Son scrappy looking trailers, but they were legal. True, they were complete...
There's plenty of good companies out there that'll hire you for more per mile solo if you're interested in long haul reefer. Grand Island Express...
My old one did that before it had to be replaced then the replacement espar did the same thing & they realized it was faulty and had to replace it...
I had the same issue a few years ago. Petro in Gary, IN discovered it was a broken belt in right steer tire & relaxed the tire. Problem solved.
In my bunk, the fan is a separate function. There should be 3 functions..a/c, heat and then fan. Don't turn the fan on when you hit the heat...
Blackvue has awesome dash cameras with the option of sd card and cloud storage. Street Guardian also is a good camera at a less expensive option....