[BlouDon]

IF there was somehow a poor connection from the female connector pin to the male fan pin over which it goes, you end up with a high resistance. This high resistance, coupled with the high amps that goes through it, results in heat being generated on those pins. The more heat, the more resistance, the more heat ..... and so on.

So now the question should be: IF it was poor connection, what caused the poor connection? The female pins being bent open too much is an obvious candidate but a high pressure cleaner being used to clean the engine is another. Few people realise that they spray water with such high force that water can easily be forced past the connector seals, become trapped inside the connector, which causes corrosion, which causes high resistance ... and there we go again...