Subaru Problems? Ask a Mechanic for Answers ASAP
Ok if its overheated and you now have transmission issues I'd say its possible that the transmisson oil cooler may have sprung a leak, as I think its cooled by the engine coolant on this model and you may have water mixing with the transmisson oil
so it would be worth draining the transmission fluid off to check that its in good condition in the 1st place
I'd also check that the main earth connections to the engine are in good condition and are bright and clean as you may be losing ECU power - and that the ECU / ECM fuses are also bright and clean with no cracks
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