1995 Pathfinder Transmission in Fail Safe Mode
I have a 95 with a transmission that seems to be in fail safe mode. My wife said it does not want to shift into high gear. Also, it starts out slow and sluggish. We think it may have gone into fail safe mode on Christmas Day when we slid off the road (partially) and got stuck in a snow drift. Couldn't get out-even in 4wd. The rear wheels were on the road, but it was just ice and and the wheels would only spin. Had to be pulled out. Right before getting stuck, I braked and slid a long distance, geared down quickly, which did not help. Ended up going off to the right and getting stuck.
I have read up on it a bit. I went through a sequence of shifting and flipping the OD switch, etc. This put the "auto light" into test mode, (blinking). It does not seem to indicate that there are any issues in the 10 tests performed. There are 10 blinks, with only one pause in the sequence, indicating the very start of the testing. From what I read, this means all is okay. If I shut the key off, upon restart, the light blinks 8 seconds, indicating a fail-safe reset.
I am guessing that it resets and them immediately goes back into fail safe mode. Got to thinking, the tach has not worked, or has worked off and on for some time now. I am wondering if this could be related if the engine speed is an input and the signal/sensor is inaccurate.
Another thing I have noticed is that the engine temp has barely been registering above cold. There is heat in the cab, but it has been, until very recently, fairly cold here for some time (down to 0 and 10 below for a few days). During this period of time, is when we went off the road and the whole transmission issue emerged (I believe this is when it emerged). Before all the recent snow, the vehicle had not been used much for quite some time. Also, the 4wd did not seem to be working very well as we couldn't get out of our driveway. That may be a different issue, related to the hubs.
Does anyone know if the tranny will go into fail safe if the engine speed sensor is faulty? How about running on the cold side? Thanks.