Hello,
I have a 2007 Legacy GT automatic with 254,000 miles on it. The engine has under 100k and it has a used transmission that was just rebuilt with about 120k on it.
The only issue with the car is that the AT OIL TEMP light comes on (flashing) and stays on until the car is restarted. It comes on religiously after about 15-30 seconds in any gear other than park or neutral. Pretty sure it’s a sensor issue. I haven’t successfully been able to read a temp from a scan tool yet to see what the sensor is reading, if anything. The transmission fluid is brand new, and the dipstick reads that it’s at the correct level. Nothing is leaking from the car. I verified that the transmission is circulating coolant, and the car’s coolant temperature never exceeded 195 on my drive.
I’ve read that there is a possibility that if the trans oil pan gets dented or warped at all, there is a good chance that sensor will break. I’m pretty sure the TCM is fine since this never happened last week with the old trans. I checked connections to the tcm and transmission and all seemed good. I’ll reconnect and clean them tonight and see if that makes a difference.
Thanks for any insight!
