During light city driving my Flex attempted to go into fourth gear and just reved.
I let off the gas and it calmly went into gear.
This happened 3 times... a bit concerned.
I disconnected the +battery post and grounded it over night to reset comuter.
Has not happened again but the shifts are a little harsh on light throttle.
Any ideas on what is happening?
No codes? When was the last time you changed spark plugs/transmission fluid etc.? Datalogged recently?
No codes, plugs 5k ago, drain and fill trans 8k ago.
Nothing strange in the datalogs that I can see.
Do you have anything to look for other than line pressure?