High Idle suddenly =/

[atilla_the_fun]

This does sound A LOT like a transmission problem, especially if the engine flux idle sensor/capacitor thats inside the MRF is leaking. Have you had any recent work done? The MRF-usion bolt is behind the flexplate mounting bolts and can be damaged when the tranny is serviced??

Mine did this last winter.. One time, RPMS go to 2500 after putting the car into park. The issue resolved itself and never happened again.

[Grif]

This does sound A LOT like a transmission problem, especially if the engine flux idle sensor/capacitor thats inside the MRF is leaking. Have you had any recent work done? The MRF-usion bolt is behind the flexplate mounting bolts and can be damaged when the tranny is serviced??

Mine did this last winter.. One time, RPMS go to 2500 after putting the car into park. The issue resolved itself and never happened again.

Shenanigans.