Mercury / Grand Marquis / 1999
1999 Mercury Grand Marquis problems
Owners have filed 202 complaints about the 1999 Mercury Grand Marquis with NHTSA. Engine and engine cooling accounts for 13.4% of them — narrowly the most common, ahead of exterior lighting at 9.9%.
Complaints202
Crashes21
Fires2
Injuries14
Deaths0
What owners report breaking
Engine and engine cooling 13.4% · 27
Exterior lighting 9.9% · 20
Steering 8.9% · 18
Suspension 8.9% · 18
Electrical system 7.9% · 16
Power train 6.9% · 14
Tires 5.9% · 12
Vehicle speed control 5.9% · 12
Severity
Of those complaints, 21 describe a crash, 2 describe a fire and 14 report an injury.
Reading the numbers
Across the 18 model years of the Mercury Grand Marquis in this data, 1999 sits 10th by complaint volume. 2005 draws the most.
Filings have fallen off, 3 in the last three years against 13 in the three before. That is normal as a generation leaves the road.
The median odometer reading at the time of complaint was 103,000 miles.
In owners' own words
Had spark plugs replaced. One plug exploded. Was told by ford dealership service mechanic the intake manifold was cracked. Car was running fine before plugs were replaced. Intake manifold is plastic. (This was an issue with the 1997 model.) Did the repairman crack the manifold? Why is replacement part still plastic? Ford/Mercury price for part is $598.06; Napa is $281.00. Engine and engine cooling · reported at 138,000 miles
: The contact stated while driving 40 mph, the engine hesitated and idled badly at a stop. The contact replaced the fuel filter, but problem continued. When taken to an independent service dealer, the diagnostics showed the manifold was cracked. The manufacturer was notified. The consumer stated the vehicle would sjip and jump. Updated 12/18/06. Engine and engine cooling · reported at 77,980 miles
Cracked the air intake on my 1999 Mercury Grand Marquis. It was made out of cheap plastic. I had to step on the throttle to get out of the way, and my car started steaming. Come to find out, the intake manifold cracked. It's only $300 for the part, not including labor. Engine and engine cooling · reported at 120,000 miles
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…