One problem related to clutch pedal/linkage has been reported for the 1999 Mercury Grand Marquis. The most recently reported issues are listed below.
Steering is very hard to control, it goes where bumps and dips take you. Car will jump all over the road. Steering has constant pull to left with lots noise. Also steel to steel slamming noise. Steering colum inside car moves. Dealers look make some adjustments,say found no problem. But problems continue. I returned for repeat preformance. Very rough ride front and rear . Electrical problems surfacing, lights flickering,dash,dome headlights etc. , engine cut out as if I turned it off and then came back on each time ihave been sitting still, talk about a dangerous driving situation! again the dealer checks it out finds no problem says they cant always find a problem until it happens and they have the car when the problem occurs. Alot of good thats going to do driving down the highway at 60mph with 5 kids in the car!!! the air conditioning doesn't cool well at first they said no problem the weather got very hot ,they set an appointment. They found low pressure replaced low prssure clutch switch. I took the car in again for poor front end and steering control now adding to the list aloud slamming together of 2 pieces of steel coming from the left front tire area either going over bumps or dips I can't tell which because it happens randomly. The solution, the dealer checks the right side! so the car goes back again .