This car has a dangerous defect. Randomly when in a stationary position, by holding the brakes, the engine and transmission sometimes suddenly accelerates powerfully, making it difficult to hold the car. I notified the dealer about this defect, several times in writing and by phone. Dec, 29, 2005 they took it on a drive, and claimed to have found no defect. Subsequently, jan, 15, 2006 at approximately 1:00 pm, I was stopped at a red light on grand st. Nyc behind an SUV, by holding the brakes, all of a sudden it accelerated, and it was impossible to hold the car. It slammed into the SUV in front of me, smashing my front. Luckily, the SUV was not damaged. But even more luckily, we did not get hurt, (I had in the car my wife, an adult daughter, and 2 grand children). In addition, I guess we were extra lucky that we had the SUV in front of me, which averted a catastrophic mowing down of pedestrians crossing. The dealers took in the car, and notified me yesterday, jan, 19, 2006, that they ran tests and find nothing wrong with the car.
2005 Mercury Grand Marquis engine complaints
Page 2 of 2: complaints 11 to 14 of 14, newest first, as owners wrote them.
On three occasions when shifting from park to reverse the engine sped up (accelerated drastically) causing the wheels to spin and only by quick application of the brake was an incident avoided. I drove into a parking space, put the car in park, then not satisfied with the position I attempted to back up, that's when the car accelerated.
Rough engine idle, dealer reps say "all the new ones do it", "it's normal". I have asked them about it on several occasions since purchasing the car. My 2005 marquis does not get nearly the good gas mileage the 2001 marquis did with the same engine. The dealer told me "you can't compare cars".
Rough engine idle, dealer reps say 'all the new ones do it', 'it's normal'. I've asked them about it on several occasions since purchasing the car. Not nearly as good gas mileage as our 2001 grand marquis got, was told by the dealer, "you can't compare cars'.
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