| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Mercury Grand Marquis repairs by problem area
Engine (37%)
Transmission and Drivetrain (10%)
Brakes and Traction Control (4%)
Suspension and Steering (18%)
Electrical and Air Conditioning (27%)
Paint, Rust, Leaks, Rattles, and Trim (0%)
Other (4%)
Chart based on 49 repairs.
2003 Mercury Grand Marquis repair cost distribution
$2500+ (0%)
$1000 - $2499 (9%)
$500 - $999 (34%)
$100 - $499 (45%)
< $100 (13%)
Chart based on 47 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Mercury Grand Marquis 4dr Sedan
239-horsepower 4.6L V8 4-speed automatic RWD
| Mercury Grand Marquis in Ohio, United States Jan 2011 - Jun 2018 | |||
| Mar 201549000 miUS $723 | Air bag light came on. Problem was passenger side seat belt pre-tensioner sensor was open. Only repair possible was complete seat belt and harness replacement. The correct light flint color is not available. Dark gray belt installed. :( | ||
| Mercury Grand Marquis in Virginia, United States Oct 2013 - Jun 2014 | |||
| May 201465000 miUS $43 | The blend door for the HVAC system died. I'm not complaining since the original lasted 11 years. Managed to replace it myself in under 2 hours. | ||
2003 Mercury Grand Marquis 4dr Sedan
224-horsepower 4.6L V8 4-speed automatic RWD
| Mercury Grand Marquis in South Carolina, United States Aug 2014 - Sep 2017 | |||
| Sep 2014116000 miUS $415 | Serpentine belt idler was chattering. Dealer first thought it was the idler worn out and that the belt was damaged. Turned out to be the engine cooling fan bearing that had worn out. | ||
| Nov 2015126400 miUS $850 | rear axle had become egg shaped and was wearing through | ||
| Mercury Grand Marquis in Texas, United States Mar 2014 - Jul 2015 | |||
| Oct 2014187800 miUS $235 | lower ball joint (1), align. turn 2 rotors | ||
| Jun 2015196000 miUS $15 | a couple of isolated incidents indicating the thermostat stuck closed. Replaced thermostat. | ||
| Mercury Grand Marquis in Illinois, United States Nov 2014 - Mar 2019 | |||
| Mar 201491818 miUS $487 | replace alternator replace pcm | ||
| Nov 201496000 miUS $1275 | replace intake manifold | ||
| Jul 201598300 miUS $477 | replace lower steering shaft | ||
| Jan 2019113012 miUS $1069 | fuel pump replaced intake manifold replaced | ||
| Mercury Grand Marquis in Georgia, United States Aug 2021 - Jun 2022 | |||
| Jun 2022205000 miUS $700 | Rear end work | ||
| Mercury Grand Marquis in Massachusetts, United States Apr 2017 - Mar 2020 | |||
| Jun 2017150000 miUS $300 | Radiator replaced Steering shaft replaced | ||
| Jan 2018157000 miUS $1000 | replaced upper steering column due to rust - these were recalled on the 2004 model year cars at one point but our car was never done and the recall is closed. VERY DANGEROUS and I'm not happy to have to do it. I had replaced the lower shaft previously. replaced all four rotors and pads, calipers on rear were too rusty and so we opted to replace. the fronts were cleaned and lubed. exhaust bracket was rusted- replaced | ||
| Mercury Grand Marquis in Florida, United States Jul 2013 - Jan 2018 | |||
| May 201431000 mi | Regulator cable snapped in rear driver side window. This is the 2nd time this issue has been fixed. Also front passenger window won't roll down. | ||
| Jul 201432700 miUS $640 | Axle needed to be replaced. The 2003 model year cars made prior to 1/1/2013 had faulty "soft" axles. This is a known issue you can search on Google. Horrible job by Ford to not issue a recall for this. | ||
| Dec 201558000 miUS $700 | 2 bad coils were causing misfires. All spark plugs were also replaced. | ||
| Mercury Grand Marquis in New York, United States Mar 2012 - Jun 2013 | |||
| Apr 2012112800 miUS $600 | cracked intake manifold | ||
| Mercury Grand Marquis in Iowa, United States Dec 2010 - Dec 2011 | |||
| May 201166000 miUS $700 | engine cooling fan stopped working, PCM had to be replaced 500.00 parts + Labor = 700.00 | ||
| Mercury Grand Marquis in California, United States Dec 2010 - Jun 2018 | |||
| Oct 201392200 miUS $400 | Replace air bags | ||
| Jun 2015110000 miUS $200 | Replace defective coil pack on one cylinder | ||
| Aug 2015111800 miUS $400 | Replace ram air sensor | ||
| Nov 2015115000 miUS $500 | Intake manifold, coil pack | ||
| Mercury Grand Marquis in Michigan, United States Jan 2011 - Mar 2011 | |||
| Mar 201172000 miUS $500 | Very noisy and often running rear suspension air pump. It was broken & needed to be replaced. | ||
| Mercury Grand Marquis in Texas, United States Jun 2011 - Apr 2013 | |||
| Nov 201290100 miUS $750 | Rear differential housing sprung a leak and took rear end bearings with it. Replace and repacked bearings. | ||
| Mercury Grand Marquis in Illinois, United States May 2012 - Aug 2018 | |||
| Jul 201483200 miUS $335 | A/C not cooling. Fan blower relay and the electrical wiring was replaced. | ||
| Sep 201484000 miUS $195 | Driver side window switch would not raise the window. | ||
| Mar 201587000 miUS $300 | The car would not start. The starter was replaced. | ||
| May 201588000 miUS $400 | Engine missing, replaced plugs and an ignition coil. differential failure ... rear axel etc ... | ||
| Apr 201695300 miUS $480 | Replace rear axle ... | ||
| Jun 2017104500 miUS $475 | Replace pads and rotors ... | ||
| Oct 2017106500 mi | Lighting control module. | ||
| Dec 2017107000 miUS $100 | Replace coil on two cylinders. | ||
| Mar 2018108000 miUS $550 | Replace inner manifold. | ||
| Apr 2018108000 miUS $300 | Tail lights will not come on, or stay on ... | ||
| Mercury Grand Marquis in Michigan, United States Dec 2004 - Mar 2018 | |||
| Feb 200427264 mi | Camshaft position sensor replaced under warranty. | ||
| Dec 201170000 miUS $322 | After tire rotation during service car swerved badly at expressway speed. Goodyear tires were found to be different sizes and put back as originally placed. Steering shaft also replaced because the universal joint was stiff from rust and dirt. | ||
| Dec 201381000 miUS $124 | Check Engine light came on. Engine running fine. Water temperature showed cooler than normal. Thermostat replaced. While under repair, coolant flush and coolant replaced. | ||
| Jul 201588200 miUS $651 | The car started blowing very hot air with AC on. I had to turn it off. The blend door motor had to be replaced. It required removing and replacing instrument panel. | ||
| Aug 201588600 miUS $560 | Taking the car home after previous repair, the airbag light stayed on. I returned to the dealer and found that it was a module behind the instrument panel that had failed. Part had to ordered. Instrument panel removed and replaced again. | ||
| Sep 201797673 miUS $492 | Leaking accumulator was replaced. | ||
2003 Mercury Grand Marquis 4-door
8-cylinder automatic 2WD
| Mercury Grand Marquis in Oregon, United States Feb 2012 - Mar 2012 | |||
| Mar 201273000 mi | Annoying squeak in front suspension. | ||
See TrueDelta's information for all Sedans
See TrueDelta's information for all Mercury models.
