2004 Mercury Grand Marquis buying guide

A data-driven checklist for buying a used 2004 Mercury Grand Marquis, built from 347 owner complaints, 1 recall campaigns, 49 service bulletins and federal safety records — not opinions.

Know before you buy

1 recall campaigns affect this model year. Check each one and confirm the repairs were done — recall work is free at any authorized dealer.
Main problem areas: exterior lighting (206), steering (65), electrical system (40), vehicle speed control (23), engine and engine cooling (10).
Symptoms owners describe: rust / corrosion (16), hesitation / surging (8), steering problems (6), stalling (5). Test-drive with these in mind.
Reported incident mileage: among 277 complaints with a usable odometer reading, half were filed between 55,000 and 110,000 miles (median 82,500). This describes when owners reported problems — it does not predict when a particular vehicle will develop one.
5 federal investigations have named this model year — read what they cover.
Fuel economy: 18 MPG combined (EPA; engines: 4.6L 8-cyl).

When problems get reported

Reported incident mileage among 277 complaints with usable odometer readings.

under 20k		15
20–40k		19
40–60k		43
60–80k		48
80–100k		59
100–150k		59
150k+		34

Before you hand over money

Run the VIN through our free VIN decoder to confirm the exact build.
Check open recalls by VIN at nhtsa.gov/recalls — a recall that was never fixed is a free repair you can claim.
Get a pre-purchase inspection focused on the problem areas listed above.

This guide is generated from official NHTSA, EPA and FARS records. Complaints are unverified owner reports and raw counts are not adjusted for sales volume.