MadCarDisease
New Member
- Joined
- April 5, 2021
- Messages
- 8
- Reaction score
- 0
- City, State
- San Mateo, CA
- Year, Model & Trim Level
- 2015 For PIU
I have a 2015 Police Interceptor Utility with 3.7 AWD, but I do not think my issue is unique to the PIU. If I am driving down the freeway at 60mph and the traffic suddenly stops--- I slam on the brakes and tranny downshifts (as designed), but then stays in the lower gear, bouncing off the limiter and the transmissiion refuses to upshift when the traffic speeds up again. The transmission shifts perfectly fine on moderate acceleration of deceleration, but this "stuck in low gear" condition only happens when I come to a sudden stop, or brake hard. I was able to get things back to normal by depressing the overdrive switch on the shift column once, pulling over and restarting the car another time, and I did get a flashing check engine light once. My OBD2 reader did not register any codes. I do not think the fault is with the infamous ADFSO (I searched the forum) because I do not sense the fuel shutting off.
Are there some known solenoid / gyroscope / mechanical issues with this , or where else should I look? I have not been the dealer yet. My PIU does have different programming, including shift points. It does have an extra transmission cooler, but this behavior could be otherwise generic (Mods: feel free to move thread, if I am wrong).
Thanks in advance for any hints.
Luke, in northern California
Are there some known solenoid / gyroscope / mechanical issues with this , or where else should I look? I have not been the dealer yet. My PIU does have different programming, including shift points. It does have an extra transmission cooler, but this behavior could be otherwise generic (Mods: feel free to move thread, if I am wrong).
Thanks in advance for any hints.
Luke, in northern California