Vehicle Speed Control Related Problems of the 1999 Mercury Grand Marquis

Table 1 shows six common vehicle speed control related problems of the 1999 Mercury Grand Marquis. The number one most common problem is related to the vehicle speed control (six problems). The second most common problem is related to the speed control linkage (one problem).

Table 1. Vehicle Speed Control related problems of Mercury Grand Marquis


Recently reported Vehicle Speed Control problems of the 1999 Mercury Grand Marquis

The Vehicle Speed Control problem

The contact owns a 1999 Mercury Grand Marquis. While driving 75 mph with the speed control engaged, the speed increased when the brakes were applied and failed to disengage. The contact was forced to manually disengage the vehicle speed control in order to avoid a crash.   Read details...

The Speed Control Linkage problem

Accelerator got stuck in open position, causing vehicle to continue accelrating after coming to a stop. Vehicle hit some thing before shutting off. Ford has been contacted.   Read details...

The Car Accelerates On Its Own problem

I pulled up to an intersection, the car accelerated rapidly. I mashed brakes but car kept on rapidly accelerating, tires screeching and peeling rubber. I had to turn off ignition to stop car.   Read details...


Vehicle Speed Control related problems in other Mercury Grand Marquis model year vehicles:



Fuel Economy of Grand Marquis Vehicles
Grand Marquis Service Bulletins
Grand Marquis Safety Recalls
Grand Marquis Defect Investigations