1999 Mercury Grand Marquis problems
NHTSA has received 202 complaints about the 1999 Mercury Grand Marquis, and 16% of them involve engine. After that come lighting (10%) and steering (9%).
At a glance
- Complaints
- 202 filed with NHTSA
- Most reported
- Engine 16% of complaints
- Crashes and fires
- 21 and 2
- Injuries and deaths
- 14 and 0
- Typical mileage
- 103,000 miles 72 complaints with mileage
Source: NHTSA owner complaints
Where the complaints are
Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.
When problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 2 |
| 20k to 40k miles | 1 |
| 40k to 60k miles | 6 |
| 60k to 80k miles | 11 |
| 80k to 100k miles | 11 |
| 100k to 120k miles | 14 |
| 120k to 140k miles | 11 |
| 140k to 160k miles | 7 |
| 160k to 180k miles | 3 |
| 180k to 200k miles | 5 |
| 200k+ miles | 1 |
What the data shows
Among the 72 complaints that report mileage, the typical (median) problem appeared at about 103,000 miles. For engine specifically, the median reported mileage is about 100,000 miles (29 complaints with mileage).
Safety-related details: 21 complaints mention a crash; 2 complaints mention a fire; 14 injuries reported.
Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 1999 ranks 8th most-complained-about out of 21 model years of the Mercury Grand Marquis with enough data (90 complaints in that window). It is also covered by 3 safety recall campaigns.
What owners wrote
A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.
Dt*: the contact stated, as the break pedal was released to begin a left turn, the vehicle was rear ended by another vehicle. The driver side seatbelt retractor failed to lock, causing the contact's head to hit the steering wheel, which resulted in an injury. A police report was filed and a complaint was filed with the manufacturer.
While driving on the expressway, the vehicle suddenly changed lanes and the steering became erratic. Upon examination, the idler arm had separated from the steering link arm. There was no warning and the vehicle had recently passed a safety inspection.
Driver was involved in an accident , dual airbags had a delayed deployment which caused driver to smash against windshield with head and even with seatbelts worn.
Tl* the contact owns a 1999 mercury grand marquis. He could not accelerate past 30-35 MPH. The vehicle was taken to an authorized dealer for diagnostic testing. The technician stated that the failure was because of a plastic intake manifold. The vehicle was repaired with the replacements of a metal intake manifold and spark plugs. The following day after the service repair, he experienced rough idling while starting the engine cold. The authorized dealer was notified of the failure, but no remedy was available.
Tl* the contact owns a 1999 mercury grand marquis. The contact stated that the vehicle would stall sporadically and without warning. A local mechanic diagnosed that the intake manifold would need to be replaced. The dealer was contacted, but denied any assistance with repairs to the defect. The manufacturer was not made aware of the failure and the vehicle was not repaired. The failure mileage was 90,200 and the current mileage was 91,000.