This depends entirly on what automobile we are talking about, EG:
THe GM P30 chassis from the 1980s was notorious for having the camber go out of tolerance backing off the alignment rack.
My race car it means I did not tighten the pinch bolts correctly.
GenerallyThere is no factory camber adjustment for your truck. Your best bet would be to go to Napa and buy a set of camber bolts and have them installed. Cost is about $16.
Either a worn or a bent componenet.
The clutch is bad or out of adjustment.
The hub bearing can go bad and create noise.
The neural safety switch is either bad or out of adjustment. If it starts when you pull up on the selector handle, it probably is an adjustment problem.
Thermocycling.
bad or out of adjustment brake switch on the brake pedal arm
EIther there is no adjustment. It is built into the drive axial. Use shims, or body pull. OR, Some have an eccentric round nut adjustment up on top (of the steering knukle) where the top ball joint would go as in the 1986 model 4 wheel drive. Needs a special tool and usually is rusted on good. Best to take to a shop that can deal with those odd balls. Very expensive. I had one of those trucks. No way visible to see how to adjust Camber and it wears out your front tires real fast. Or, Third option cheap do it yourself. Google for Camber Kit (Silverado) buy from Einbrach something name like that special offset ball joint to - +2 degree camber to replace old ones if not able to shim /bend front "axial" or adjustment eccentric cam is frozen on too hard to knuckle (do not heat those since it will take out the temper and ruin them) press out old top ball joint and replace with special offset aftermarket kit to get the wheel in alignment. Cheap way to go for do it yourself. Silverado is great for that year 350 CID with 700R4 tranny runs great; only the front ball joint camber adjustment on the 4 wheel drive is a joke.
There can be a few reasons for a catalytic converter to go bad. One of the causes could be clogs. Other reasons include plugs not working right, and bad exhaust valves.
go to the sealed camber by having wailord and recaith
They get soggy in damp weather.
A bad transmission.