While driving along at various speeds, the car suddenly drops out of overdrive (D4) into D3. This usually occurs at speeds greater than @50 MPH, but has occurred at lower speeds, but I only notice it by the "S" Light coming on. When at higher speeds, you can obviously feel the car downshift, followed by the "S" Light. Also, sometime the car will oscillate between the two gears, with the "S" Light flickering.
If I pull over and turn the car off, most of the time the problem clears and the car shifts perfectly. Also if I sit a traffic light for a few minutes, the "S" Light will clears and the problem is gone. What makes this really frustrating is that most of the time, this problem won't even occur. I haven't been able to find a common factor between the all the times that this has happened (i.e., ambient temp, engine temp, speed, rmp, etc.).
I have tried to check for codes, but it seems that by the time I stop, the "S" light has cleared, and when I check for codes there are none to be read.
Any Idea's?
If I pull over and turn the car off, most of the time the problem clears and the car shifts perfectly. Also if I sit a traffic light for a few minutes, the "S" Light will clears and the problem is gone. What makes this really frustrating is that most of the time, this problem won't even occur. I haven't been able to find a common factor between the all the times that this has happened (i.e., ambient temp, engine temp, speed, rmp, etc.).
I have tried to check for codes, but it seems that by the time I stop, the "S" light has cleared, and when I check for codes there are none to be read.
Any Idea's?