1996 Mercury Grand Marquis Engine and Engine Cooling Problems
Owners have filed 85 complaints with NHTSA about engine and engine cooling problems on the 1996 Mercury Grand Marquis, 36% of all complaints for this model year. Half of the reports with a mileage happened before 85,000 miles. The words owners use most often: “intake manifold” (59% of reports).
- 85engine and engine cooling complaints
- 85,000median miles at failure
- 0mention a crash
- 2mention an injury
- 0related recalls
- $1,450typical repair cost reported by owners
- 54%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Intake manifold: mentioned in 50 of 85 complaints (59%)
- Cracked plastic: mentioned in 5 of 85 complaints (6%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical engine and engine cooling repair on the 1996 Mercury Grand Marquis at $1,450, and half of them between $1,000 and $1,850.
Based on 10 NHTSA complaints about this problem alone that state a repair bill or quote (2003–2010), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do engine and engine cooling problems happen?
Based on 57 complaints that reported the odometer reading.
How serious are the reports?
Of 85 complaints, 8 a fire, 2 an injury.
Mercury Grand Marquis engine and engine cooling complaints by model year
| Model year | Engine and Engine Cooling complaints | Share of that year | Median miles |
|---|---|---|---|
| 2010 Grand Marquis | 1 | 4% | 36,000 |
| 2008 Grand Marquis | 5 | 6% | 19,800 |
| 2007 Grand Marquis | 3 | 3% | 3,001 |
| 2006 Grand Marquis | 2 | 1% | 99,300 |
| 2005 Grand Marquis | 9 | 2% | 20,194 |
| 2004 Grand Marquis | 10 | 3% | 100,000 |
| 2003 Grand Marquis | 13 | 4% | 18,445 |
| 2002 Grand Marquis | 10 | 13% | 73,000 |
| 2001 Grand Marquis | 20 | 13% | 36,000 |
| 2000 Grand Marquis | 17 | 10% | 87,000 |
| 1999 Grand Marquis | 26 | 16% | 92,100 |
| 1998 Grand Marquis | 26 | 18% | 100,000 |
| 1997 Grand Marquis | 124 | 39% | 80,072 |
| 1996 Grand Marquis | 85 | 36% | 85,000 |
| 1995 Grand Marquis | 8 | 4% | 76,583 |
When owners reported it
Related recalls (0)
No safety recall lists engine and engine cooling for the 1996 Mercury Grand Marquis. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
A crack in my exhaust manifold behind the alternator causing coolant to spray all over under my hood and now my engine overheats..thanks for using plastic parts ford . *tr
While driving my vehicle home from work in the evening, the car started to putter, then smoke came pouring out from under the engine hood blocking my view from the road causing cars to race around me and almost had an accident...also started coming in the vents of the car, making me nausea. Extreme…
Tl*the contact owns a 1996 mercury grand marquis. The contact stated that there was steam emitting from the engine compartment. A mechanic advised the contact that there was a crack in the plastic intake manifold. The vehicle had not been repaired at the time of the complaint. The contact called…

Frequently asked questions
Do all 1996 Mercury Grand Marquiss have engine and engine cooling problems?
No. NHTSA has 85 owner complaints about engine and engine cooling for the 1996 Mercury Grand Marquis (36% of the 239 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 1996 Mercury Grand Marquis engine and engine cooling?
No recall currently lists engine and engine cooling for this vehicle.
At what mileage do engine and engine cooling problems start?
The median reported mileage is 85,000 miles: half of the reports with a mileage came before that.
How much does it cost to fix engine and engine cooling problems on the 1996 Mercury Grand Marquis?
Owners report a typical cost of $1,450 (half paid between $1,000 and $1,850), from 10 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about engine and engine cooling problems on the 1996 Mercury Grand Marquis?
The most frequent phrase is “intake manifold”, in 50 of 85 complaints, followed by “cracked plastic” (5).
See all 1996 Mercury Grand Marquis problems or engine and engine cooling problems across all Grand Marquis years.