The automatic transmission may develop shifting concerns. On lower mileage vehicles, upgrading the software in the powertrain control module (PCM) and the transmission control module (TCM) may correct the problem. As the mileage increases, internal transmission damage can occur. Repairs could involve replacement of the valve body or a complete transmission rebuild. Whenever major transmission repairs are made, it is important to be sure the PCM and the TCM have the latest software updates to help prevent these issues from reoccurring.Google+
Car Problem Reports
Mercury Milan Harsh or Delayed Shifting of Automatic Transmission
Mercury Milan Problem
Drive Trains Affected: Automatic Transmission, Manual Transmission
Average Mileage: 81,768 mi (8,100 mi - 150,000 mi)
Visitor, 2008 Mercury Milan, Automatic Transmission, 80,000 mi
hard shifting at around 35-40mph
Visitor, 2008 Mercury Milan, Automatic Transmission, 85,000 mi
Started shifting hard between 40-50 mph. (3rd to 4th gear. Problem got worse and eventually would not shift out of first gear-no warning light came on until this occurred and now it sounds like I may need a new tranny. If you have this problem it won't hurt to have the throttle position sensor tested. This may have caused the start of the problem.
Should not happen!
Visitor, 2006 Mercury Milan, 60,000 mi
Shifting rough. Especially when accelerating at around 35 to 40 mph. Even slips out if drive occasionally .
Visitor, 2010 Mercury Milan, Automatic Transmission, 27,000 mi
I have the same problem. My transmission slips, sometimes. And when it does it's quite a jolt, & makes a whining noise
Visitor, 2006 Mercury Milan, 90,000 mi
if I'm going 50 to 60mph and slow down to 30mph or so for a red light or curve and then push the throttle to accelerate it will down shift violently. I think it's down shifting into 2nd gear. it's done it since I bought the car at 90000 miles.
Visitor, 2010 Mercury Milan, Automatic Transmission, 49,500 mi
Put in in gear, a big thunk until about 2 miles, then it works good all day. Just happens in the mourning after car sits all night.
Visitor, 2008 Mercury Milan, Automatic Transmission, 78,000 mi
transmission fluid started leaking, and ALL came out once started. when cold, no leaks, had it filled back up (VERY expensive fluid for this transmission type compared to others) held fluid fine, car warmed up, leaked all fluid out again (did not drive) took to transmission shop...$2,800.00 to REBUILD. This car is a POS, DO NOT BUY!
Visitor, 2006 Mercury Milan, 117,000 mi
Harsh and delayed shifting. Engine revving ( as if in neutral) before gear shiftw.
When automatic shifts into 2nd gear giveaway a hard jerk and now does it with the forth gear
Visitor, 2008 Mercury Milan, Automatic Transmission, 8,100 mi
my problem started with the tran light it came on .I took it to a trasmission place. they put in 3 transthe same proble. i then took to a ford dealer.they said that it was the wiring holster. they replace that for$1100 dollars and i still have the same problem its going back in the shop friday