92 LC: 3F-E Hi there, just after I got my engine running beautifully, on the way up the mountain I got a hot A/T light. Pulled over, ever since it doesn't like shifting from 1 to 2 (auto trans.)! I checked added fluid, no help. I drained fluid, replaced filter and refilled, still have a problem. When engine is cold, and I accelerate lightly, it will shift OK, but once hot, if I accelerate fast, it revs impossibly high, and then seems to shift straight to 3. Is this going to be expensive? : (