I have a 2004 Forester XS Premium, 2.5 non-turbo, 142,000 on the odo. Just had the engine rebuilt because of a leaking head gasket (dripping oil significantly onto the driver's side exhaust). Apart from a problem getting the cam cover on one side to seal properly and a couple of other minor problems, the rebuild went well. The engine runs fine.
However (there's always an however, isn't there), a couple of issues with the auto transmission have arisen. First I noted that the indicator light on the dash for Drive does not illuminate - all the other AMT indicator lights do. I work up a mountain, so I shift down to Third to use engine braking. When shfiting back to Drive, the transmission does not: it stays in Third. I can shift to Neutral, then to Drive, and the transmission does go into Drive. The dash indicator for Drive does not illuminate. This behavior is repeatable and consistent.
Of course, the tranny was removed for the engine rebuild. The shop manager thinks there may be a correlation with a burnt out Drive LED and the circuit not being properly completed. I suspect not.
After doing some poking about on the net and here, I came across references to an automatic transmission drive inhibitor switch/neutral safety switch on the side of the tranny. Could the mechanic, when reinstalling the transmission, have somehow dorked this switch up a bit? Does it needs to be relaced or can it be readjusted? Or could this be a problem with the TCM and it needs to be reset?
This is a strange one, it is.