The wiring terminal on my alternator melted (killing the battery and car) A new secure connection was soldered on and it seemed the problem was fixed, now 30 miles later the same thing battery barely reading above 8. It was dark and I just got off work so I haven't looked to see if the wire is melted again. Two questions 1-what can cause such a thing? 2- the VATS system is all sorts of weird, first the ignition cylinder was replaced due to a short. after 5 months or so the same vats crap started up again; sometimes the car just wouldn't start until the third, fourth or tenth time. Then the problem suddenly and mysteriously disappeared! I am fearful a vipers nest of electrical problems is hiding somewhere getting larger by the second... Is it possible that the two problems are related?

1989 GTA 5 speed with a microchip upgrade everything else is stock

 

If the solder is melting it means that area is getting to at least 362°.

A bad/dirty connection can cause it to heat up.

A short can cause it to heat up.

A bad battery can cause it to heat up.

If the battery is near it’s expiration date replace it.

Can’t tell from the info provided if the VATS problem is related.

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Happy Racing!