2004 Mercury Mountaineer Suspension Problems
- Complaints
- 6about this part
- Share
- 3%of 210 total for the year
- Median mileage
- 70,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the suspension of the 2004 Mercury Mountaineer, 3% of the 210 complaints for this model year. Where a mileage was given, the median is 70,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have a used 2004 Mercury Mountaineer I purchased in 12/2008 it had 53,000 miles. I have done all of the required maintenance oil changes,brake pads,fluid changes, and 60,000-mile service package. I have nothing but problems with the vehicle. The failures I have are as follows: 1. Front/rear brake pads,front/rear rotors,spark plugs,-defected parts 2. Battery 3. Tires-constant flats 4. Lug torque-driver front/rear 5. Hood shocks,tire pressure sensor light 6. Transmission fluid leak/ front pump seal leak 7. Noise at harmonic balancer 8. Roar noise and shakes at all speeds 9. …”
NHTSA complaint #10408434, filed 2011-06, 70,000 miles“Humming in front at all speeds ft wheel bearings where bad. Now right rear bearing making noise. Very loose . Lots of other complaints online need to be looked at”
NHTSA complaint #11081868, filed 2018-03, 90,000 miles“2004 Mercury Mountaineer with 40k miles had driver side upper and lower ball joint failure. This was uncover during a normal state inspection. Replacement of both joints was required to safely drive this car.”
NHTSA complaint #10348954, filed 2010-08, 40,800 miles“2004 Mercury Mountaineer has hub bearing defects, transmission defects, drive train defects, rear axle and differential defects. There are thousands of complaints about these components of Mercury Mountaineer and ford explorer yet NHTSA does nothing. Ford will not fix these problems and has been doing band aid fixes under warranty. They deny there is a problem yet there are thousands of complaints on the various web sites. It makes me believe NHTSA is in bed with the auto manufacturers and really don't care about the public. Wheels fall off cars cause hub bearings fail yet there is no recall.. …”
NHTSA complaint #10323883, filed 2010-04, 985 miles“The contact owns a 2004 Mercury Mountaineer. The contact stated that while traveling 50 MPH, there was an abnormal noise and burning odor emitted from the rear end of the vehicle. The vehicle was restarted but the failure recurred. The failure occurred on two other occasions. The vehicle was taken to a private mechanic where it was diagnosed that the rear differential and the axles needed to be replaced. The manufacturer was not notified of the failure. The failure mileage was 131,530 and the current mileage was 131,619.”
NHTSA complaint #10593341, filed 2014-05, 131,530 milesRelated service bulletins
- 10018064Oct 7, 2005Noise from rear wheel hub bearings.
- 10016789Jan 1, 2005Rear axle noise repair.
Suspension: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 1 | 1% |
| 2006 | 1 | 1% |
| 2005 | 1 | 1% |
| 2004 | 6 | 3% |
| 2003 | 10 | 7% |
| 2002 | 36 | 10% |
| 2001 | 4 | 18% |
| 2000 | 6 | 5% |
| 1999 | 4 | 3% |
| 1998 | 11 | 5% |
| 1997 | 15 | 5% |
Other parts of the 2004 Mercury Mountaineer
79 complaintsTransmission and drivetrain
64 complaintsVehicle speed control
21 complaintsElectrical system
16 complaintsAir bags
12 complaintsEngine cooling
11 complaintsOther or unknown
9 complaintsEngine
8 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsBrakes
5 complaintsSteering
5 complaintsLatches, locks and linkages
4 complaints
← All problems reported for the 2004 Mercury Mountaineer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology