Four problems related to automatic transmission have been reported for the 1997 Mercury Marquis. The most recently reported issues are listed below.
Vehicle's transmission decelerates, very erratic operation.
Down shift program exhibits a severe braking pulse that occurs at approximately 34mph whenever the vehicle coast with the gas pedal released, , causing the drive wheel to slip at the tire treads, on snowy, icy, grassy, or gravel surface.
When coasting with gas pedal released at 34 mph, vehicle unexpectedly decelerates/brakes pulse down shifting occurs due to transmission design.
The design of the automatic transmission results in unintended braking/deceleration while coasting.
| Automatic Transmission problems | |
| Automatic Transmission Control Module problems |