They get soggy in damp weather.
Yes ,Herrs chips are very bad because the contain a ingredient called Monosodium monosodium is a flavor enhancer which causes cancer they also use this flavor enhancer on Chinese food never EVER buy herrs chips.
Yes, they will melt.
The hub bearing can go bad and create noise.
Thermocycling.
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.
Well they will not get mold but they still will just not taste as good.
A bad transmission.
The oil causes the grease
chips then freezing and unfreezing
soggy chips.
Bad groung and or bad sending unit.
Bad electrical fixtures.