I’ve been having an intermittent automatic transmission issue in my 2007 Focus for a few months, and the problem has recently gotten worse. Occasionally the transmission doesn’t want to shift from first to second gear; the RPMs will jump up and eventually the transmission will harshly shift. Sometimes the Overdrive Off light will flash orange, sometimes it stays off. The problem usually occurs when the car has been sitting for 8+ hours, and only the first, 1-2 shift has the issue. After it makes that initial shift, all other shifts for the rest of the drive are normal. I have also experienced the issue after driving for 10 minutes or so, but most commonly it happens on the first shift of the day. I took the car to my mechanic when the issue first occurred, and he found a pending code of P1700 Transmission Indeterminate Failure. I’ll have to get the codes pulled again to see if there are any new codes. The fluid level and color look good, although by the maintenance schedule I am due for a fluid change (currently at 130k).
Any guesses as to what the issue could be? The local transmission shop wants to have the car for a few hours to run diagnostics, but I am concerned the issue may not occur while they have it so I am not sure how useful that would be.