Resources for the Repair and Maintenance of your Mercury Grand Marquis
Mercury Grand Marquis Models:
Mercury Grand Marquis Problems
Coolant Leak and/or Engine Overheating Due to Cracked Intake Manifold
The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.
Engine Performance Problems Due to Failed Throttle Position Sensor
The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.
Heater Hose Outlet May Leak Coolant at Back of Intake Manifold
The heater hose outlet may leak coolant at the back of the intake manifold. Sometimes this is misdiagnosed as a leaking intake manifold gasket because it resembles a leaking manifold.
EVP Sensor Failure May Cause Drivability/Fuel Economy Issues
The EGR valve position (EVP) sensor can fail on this vehicle. The EVP sensor measures the EGR valve position and transmits the date to the engine control computer. If it fails, drivability and fuel economy can suffer, the Check Engine Light will commonly illuminate.
Engine Oil Leak from Right Head Gasket
An oil leak may develop from the the right side head gasket. Oil from this type of leak will commonly drip onto the starter. Our technician tell us an updated head gasket is available to correct this concern.
Mercury Grand Marquis Recalls (Recent)
Windshield May Not Be Properly Installed
RepairPal Expert Overview:
The windshield may not be properly installed, which may cause wind noise, squeaks/rattles, and/or water leaks. If the windshield comes loose in a crash, vehicle occupants may be less protected. Dealers will replace the windshield free of charge. The recall began November 22, 2006. The Ford recall number is 06C15.
Learn more »Ford Ranger Recall 07V336000
Summary: ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.
Learn more »Ford F-350 Recall 08V051000
Summary: FORD IS RECALLING 225,000 MY 1992-2003 ECONOLINE, MY 1993-1995 TAURUS SHO, MY 1992-1998 CROWN VICTORIA, MY 1993 BRONCO, F-SERIES, MY 1995-1997 F-SERIES SUPER DUTY STRIPPED CHASSIS, MY 1992-1998 MERCURY GRAND MARQUIS, AND MY 1992-1995 LINCOLN TOWN CAR VEHICLES. THE AFFECTED VEHICLES WERE PREVIOUSLY REPAIRED USING A WIRING HARNESS THAT IS NOT COMPATIBLE WITH THE VEHICLE CIRCUIT POLARITY.
Learn more »Battery Fusible Link may Overheat and Catch Fire
RepairPal Expert Overview:
The battery cable includes a fusible link that may contact the #2 cross member. Over time this contact could damage the fusible link. The damaged link could overheat which could lead to a fire. Dealers will inspect the fusible link and position it away from the cross member. A damaged fusible link will be replaced. This recall is expected to begin on November 18, 2005. The Ford recall number is 05S38.
Learn more »Wheel May Separate from the Vehicle
RepairPal Expert Overview:
Improper heat treatment of the wheel bearing and hub assembly may allow the hub to fracture. If the hub fractures, the wheel will only be retained by the brake caliper assembly. If the wheel falls off while driving, a crash could result. Dealers will inspect and replace both front wheel bearing and hub assemblies free of charge. The recall began June 22, 2007. The Ford recall number is 07S54.
Learn more »Mercury Grand Marquis Questions and Answers
this is the second tranny i am putting in it will not shift form low gear when driving there is no modulator on it but i have changed the speed control sensor i was told there may be a computer s...
when car shifts to 4th and you let off gas it quits pulling you have to give it a lot of gas for it to start pulling again already changed fluid and filter
when car shifts to overdrive and you let off the gas the transmisson kicks out of gear like it was shifted to neutral give it a lot of gas it starts working again 123 &reverse work fine only does ...
Do these tensioners weaken with time, if not do the smaller serpentine belts stretch over time
this idiot shorted out my lighter by sticking a screwdriver down in it and apparently it also shorted my cruise control as well. All the fuses are numbered but it says "see owners manu.". don't ha...
Mercury Grand Marquis Stories
1999 GRMARQUI Have TEPID HEAT.. Have changed thermastat flushed out heater core Still very LOW heat
The lights go on without turning them on and when I shut off the car they pop on or stay on for 1/2 hour or more. They have come on and gone off while driving. I had it back to the dealership and it happend to them and they finally siad they fixed it after about a week there. They had a specialist check it out. After I had it home about 6 months it started again when I returned it to Holman they said it was due to an after market remote being installed. NOT SO because it happend before I had the remote start installed and I had it done by a certified company who do most of the large dealerships work. They refused to repair it and then Holman wouldn't repair it. Now I am on my 4th battery in as many years and I AM DISGUSTED. Out of Warranty and out of PATIENCE> My car has 36,000 original miles and it is babied so I know we take great care of it but I HATE IT NOW AND CAN'T WAIT TO GET RID OF IT>>>
I have a 2003 Mercury Grand Marquis well first my oil gauge was going up n down i just thought when i crank it up it does that. It kept downing that since September the day i took it to go see whats wrong was October 10 on my way there I was at a red light it made a really loud horrible sound and it quit on me. I just don't know what to do. The dealer ship said it expire because I went over my miles. I really need to find where I can get it fix I have kids to take to school everyday.
I have a 92 Marquis had it for several years and only problem I have is that the gear shift if put in to park wont come out so I normally keep it in neutral and put EB on .. it works but it is not a fix.. I need to get it fixed. I cant take my keys out because it is not in part so I keep the doors locked on the electronic key on outside or door.. Anyone else have this probleme. I am about to put it inthe shop.. But would like to fix it myself if its easy ennough. I normally do all repairs on the car myself.. it cheaper than a shop..
ball joint problems , put $1,500 in getting them fixed ,car wears them out in less than 10 years
getting the proper brake pads is also a issue, sence thier made in four versions police and non police version with power brakes , angled tapered pads and flat one can make the differance in wear and squeaky noise in less than 3 months. when to 4 auto stores and they all gave me conflecting data on the proper pad based on what they stock, giving me the wrong part to make a sale also poor knowledge on the versions of pads