general problems of the 2005 Mercury Grand Marquis

Six problems related to engine and engine cooling have been reported for the 2005 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Mercury Grand Marquis based on all problems reported for the 2005 Grand Marquis.

1 Engine And Engine Cooling problem

Failure Date: 11/05/2024

On [xxx] I was driving this recently purchased Grand Marquis . On [xxx] here in san antonio around ten at night I hit the brakes and something under the hood compartment blew up and it cocked the car . I was trapped inside and when I finally was able to get my seatbelt released I had to break the window with my head . The previous week I reached out to Ford and they told me they would address the issue and that they would call me back and that was to no avail. I reached out to Ford and at first I was told I would be helped and then a man came on the phone yelling that my vehicle . I need help with resol this issue . My car is totaled and I’m hurting and it’s because of a car with recalls that are a fire haz and dangerous to be put on the road thank you and god bless . Was not under any recalls the car had been parked for over ten years beca when the orig owner bought it it had issues with the cruise control and the brakes and the engine and the lights . I investigated about and hazards the car was demonstrating and upon further consideration my instinct told me this car was defected and was a big problem waiting to happen information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

2 Engine And Engine Cooling problem

Failure Date: 03/22/2024

When I hit the brake pedal,4 times in past month car accelerated briefly then quit. No warning signs no one can tell me what's wrong I read there was a class action lawsuit file years ago for this problem.

3 Engine And Engine Cooling problem

Failure Date: 05/09/2019

Tl the contact owns a 2005 Mercury Grand Marquis. While driving 45 mph, the contact attempted to brake, but the vehicle accelerated. The contact shifted the transmission into neutral and the vehicle stopped. The engine continued to rev for awhile and then the rpms slowed down to a normal level. The contact stated that the symptoms disappeared on their own and the vehicle operated without any failures since. The manufacturer stated that there was no recall for the failure. The failure mileage was 79,000.

4 Engine And Engine Cooling problem

Failure Date: 01/19/2018

Tl the contact owns a 2005 Mercury Grand Marquis. While driving approximately 5 mph and then depressing the brake pedal to slow the vehicle down, the vehicle accelerated without warning. To avoid crashing into the preceding vehicle, the contact was able to veer to the right and continue driving. There was no warning indicator illuminated. The failure recurred three times. The vehicle was taken to porter Ford (600 ogletown rd, newark, DE 19711) where it was diagnosed that the throttle body motor assembly was sticking and needed to be replaced. The vehicle was repaired. The manufacturer was not contacted. The approximate failure mileage was 39,000.

5 Engine And Engine Cooling problem

Failure Date: 06/21/2017

Vehicle at times with my foot on the brake pedal,just starts to accelerate for no reason when I stop a light or in traffic.

6 Engine And Engine Cooling problem

Failure Date: 12/29/2005

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.


Other Engine And Engine Cooling related problems of the 2005 Mercury Grand Marquis



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