Voltage regulator overcharging
The factory types shown above are called 'open barrel connectors'. They have two double crimps. IMO that's a better grip and surface area. The second crimp grabs the insulation and helps create some strain relief.
(illus. posted at R.Atwell, original source probably from AMP or similar manfc.)
I'd also first see what is wrong. Is it just that circuit, or all the circuits in that connector. Take the terminals out. If the terminals look like the ones above, the flat lock tab can be released with a flattened cotter pin, tiny screw driver or similar. Push the terminal out the back while the pin is keeping the tab depressed.
Quick dry cleaner is good, butf most likely will need some scrubbing too.
IMO, only if you're desperate. Connectors are awful handy. Most butt connectors are only so-so, especially in that environment. If I have to use any single crimp insulated connectors, I try to use marine type.
The factory types shown above are called 'open barrel connectors'. They have two double crimps. IMO that's a better grip and surface area. The second crimp grabs the insulation and helps create some strain relief.
I'd also first see what is wrong. Is it just that circuit, or all the circuits in that connector. Take the terminals out. If the terminals look like the ones above, the flat lock tab can be released with a flattened cotter pin, tiny screw driver or similar. Push the terminal out the back while the pin is keeping the tab depressed.
Quick dry cleaner is good, butf most likely will need some scrubbing too.