Mercury Grand Marquis owners have reported 2 problems related to transmission slip out of gear (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Grand Marquis based on all problems reported for the Grand Marquis.
I was driving the vehicle. As I started up a hill the speed limit changed. I gave the gas pedal a little push. It went to the floor where it stuck wide open. The car leaped forward and I immediately applied the brake. I really had to push the brake as hard as I could to get the vehicle to stop. When I got the vehicle to stop I knocked the gear shift out of drive into neutral. The engine was idling really rough but then it smoothed out. I did not crash the car and continued driving with no further problems. The vehicle has 64,875 miles on it and this is the first this has happened.
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all problems of the 2007 Mercury Grand Marquis
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While sitting in traffic vehicle jumped out of gear and lunged forward, rear ending another vehicle.
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all problems of the 1999 Mercury Grand Marquis
🔎.
| Problem Category | Number of Problems |
|---|---|
| Automatic Transmission problems | |
| Power Train problems | |
| Automatic Transmission Control Module problems | |
| Differential Unit problems | |
| Driveshaft problems | |
| Automatic Transmission Torque Converter problems | |
| Transmission Failure problems | |
| Vehicle Shudder problems | |
| Transmission Shudder problems | |
| Transmission Slip Out Of Gear problems |