1999 Mercury Grand Marquis engine problems
32 complaints about engine have been filed for the 1999 Mercury Grand Marquis, which is 16% of all its NHTSA complaints. It is the most reported problem area for this model year.
At a glance
- Complaints
- 32 16% of this year's complaints
- Typical mileage
- 100,000 miles 29 complaints with mileage
- Crashes and fires
- 0 and 1
- Injuries and deaths
- 1 and 0
Source: NHTSA owner complaints
When engine problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 0 |
| 20k to 40k miles | 0 |
| 40k to 60k miles | 4 |
| 60k to 80k miles | 5 |
| 80k to 100k miles | 5 |
| 100k to 120k miles | 5 |
| 120k to 140k miles | 5 |
| 140k to 160k miles | 2 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 3 |
| 200k+ miles | 0 |
What the data shows
Of the 29 engine complaints that report mileage, the median is about 100,000 miles, and 14% were reported before 60,000 miles.
These complaints mention 1 fire, 1 injury.
What owners wrote
Complete cracking of plastic intake manifold causing completer loss of coolant and $1400 repair with the new replacement metal manifold.
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.
Other problems reported for the 1999 Mercury Grand Marquis
- Lighting 21 complaints
- Steering 18 complaints
- Suspension 18 complaints
- Electrical system 16 complaints