Car Stall Problems of Mercury Grand Marquis

My 2006 Mercury Grand Marquis LS premium car has an unresolved stalling issue. The problem is exacerbated when the car¿s engine warms up, especially during warmer weather. It tends to stall out at extended stoplights or if the vehicle needs to be stopped within a short distance. My car first began stalling after I had it washed in gasoline station¿s automatic car wash. Shortly after it was washed, the engine began running extremely rough and then finally stalled out with the ¿engine¿ light on yellow light on the dashboard. The first two master mechanics of two different repair facilities suggested that the engine¿s pcm was bad and needed to be replaced at a Ford dealership. I took my car to a third repair facility and the mechanic swapped out a used pcm for a 4. 6 l application and reprogrammed it for Ford¿s most recently issued software update. The car continues to stall after the used pcm was reprogrammed and the mechanic concluded that he was sure that the stalling problem is not related to the engine¿s pcm! I¿ve paid approximately $874. 00 among three different automobile repair facilities and all master mechanics among these three garages could not pinpoint why my vehicle is stalling. Finally, a master mechanic of a volunteer church garage also could not pinpoint why my car continues to stall and he suggests that the only fix is to sell my car. When I called a local Ford dealership to see how they would try to fix it, the service manager explained that they would try to replicate the conditions that made it stall in the first place. I explained that this method was tried by all three repair facilities, all to no avail, and that I am not interested in paying additional fees for future diagnostic tests that cannot pinpoint the failure. To prevent stalling at stoplights, I need to use both the gas and brake pedals at stop lights!.

See all problems of the 2006 Mercury Grand Marquis 🔎.

No abnormal operation noted before event. The failure is spark plug blow out on a 4. 6l engine. The failure occurred twice in a 2 week time period on the same cylinder damaging the spark plug and coil pack. First instance was the factory installed spark plug.

On three separate occasions the vehicle has stalled while driving on the highway. Each time this happened the vehicle could not be restarted and had to be towed to the nearest garage. The dealer informed the consumer that service bulletin 12950 as issued in 1999 identifying a fix for this problem. Since the consumer's vehicle was no longer under warranty he was forced to pay for the repair.

See all problems of the 1998 Mercury Grand Marquis 🔎.

Intermittently while driving at highway speed vehicle stalled. This caused the loss of steering and the brakes. Vehicle was towed to the dealership, they charged $750. 00, and problem recurred.

While driving vehicle stalled. Consumer used a starter battery kit to restart the vehicle or contacted aaa to have the vehicle towed. The aaa representative indicated that the stalling may be due to engine motor failure. Dealership and sears retail store performed a diagnostic test, but no failure code was found. Also , the battery and air bag warning light came on. This failure almost caused rear end collision. Owner is an ex philadelphia eagle football player named curtis bunch-black.

While driving at 45 mph vehicle stalled. Also, early in the morning it was hard to start vehicle. Vehicle was checked by the dealer, who couldn't find the cause of the problem.

See all problems of the 2003 Mercury Grand Marquis 🔎.

2003 Mercury grand marques stalls at or near idle speed. Has stalled when backing up, when starting forward from stop at traffic light. Have had it into the dealer, ray pearman Lincoln Mercury 4 time for a total of 9 days. They have been unable to fix problem as of yet. The dealer confirmed that there was a stalling problem. They have replaced the idle air control valve and the mass air flow sensor. Each time they thought they had it fixed and had me take the car, it has stalled again. One time it stalled as I was backing out of the dealer service department. It is currently at the dealer and they are trying to find the problem.

Consumer started vehicle at a cold start and pulled out, then came to a stop. Consumer pressed the accelerator and vehicle stalled out.

See all problems of the 1999 Mercury Grand Marquis 🔎.

Vehicle stalls, mostly while making turns at slow speeds. Dealer feels cause is overfilling of fuel filler neck. Dealer replaced filler pipe, however consumer states vehicle is still stalling.

See all problems of the 1996 Mercury Grand Marquis 🔎.

While driving about 20 mph vehicle stalled. There was no power steering and brakes, vehicle is at repair shop for the fourteenth time.

While traveling the vehicle stall out without indications. Manufacturer has ben contacted. Please provide further details.

While traveling in traffic vehicle stalled without any inidcation, and lost ability to steer and brake . This has occurred 6 times in last 3 months. Please provide further information.

While driving vehicle would stall for no reason. If at a stop sign/light & idling, would shut itself down. Been to dealer twice for stalling & mechanic cannot locate cause of problem. Its an intermittent problem.