There are 5 stored owner reports matching the steering leading-label group for the 2004 Mercury Mountaineer in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 5 of 5 matching reports.
Open the full vehicle complaint log (all categories)TAKATA RECALL AIR BAG LIGHT STAYS ON FOR NO APPARENT REASON... ALL THE TIME GRINDING NOISES WHILE TURNING LEFT OR RIGHT SOUNDS LIKE GEARS ARE FREELY SPINNING WHILE ENGAGED AND DRIVING. NO ISSUES WITH CHANGING GEARS AS FAR AS MECHANIC SAYS.
I HAD PICKED UP MY KIDS FROM DAYCARE AND I PUT MY VEHICLE IN REVERSE AND BACKED UP. WHILE BACKING UP I HEARD A LOUD POP AND I GOT OUT TO SEE BUT THERE WAS NOTHING VISIBLE. SO I PUT THE VEHICLE IN DRIVE AND AS I WAS GOING DOWN THE STREET MY VEHICLE AXLE BROKE AND MY TRUCK HIT THE STREET IN THE MIDDLE OF TRAFFIC. I TOOK IT TO THE FORD DEALERSHIP AND THEY SAID IT WAS MY AXLE AND MY DIFFERENTIAL HAD BROKEN ALSO, AM I AM LUCKY THAT I DIDN'T HAVE A BAD ACCIDENT WITH THE EXTEND OF THE DAMAGE OF THE DIFFERENTIAL. AFTER I FIXED THAT AND IT COST $2900. THAT STILL DID NOT FIX THE PROBLEM AND I HAD TO REPLACE THE TRANSFER CASE. THEN ALL THREE OF MY CADILLAC CONVERTERS HAD TO BE REPLACED. I HAVE HAD PROBLEM AFTER PROBLEM AND OH YEAH THE BACK REAR GATE HAS BEEN CRACKED LIKE THE MONTH AFTER I BOUGHT IT. *TR
TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE ATTEMPTING TO CHANGE THE WHEEL DRIVE, THE VEHICLE FAILED TO UTILIZE THE FORWARD WHEEL DRIVE. IN ADDITION, THE VEHICLE BEGAN EXHIBITING SEVERAL FAILURES SIMULTANEOUSLY. THE POWER STEERING ASSIST FAILED, THE GEAR SHIFTER FAILED, AND THE TRANSMISSION WAS CAUSING THE VEHICLE TO JERK ABNORMALLY. ALSO, THE POWER WINDOWS HAD BECOME INOPERABLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR INSPECTION. THE CONTACT WAS INFORMED THAT THE TRANSFER CASE AND TRANSMISSION NEEDED TO BE REPLACED. THE ADDITIONAL FAILURES WERE NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE INCIDENT. THE APPROXIMATE FAILURE MILEAGE WAS 83,000.
TRANSFER CASE DEFECT CAUSES STEERING DIFFICULTY ON SLOW TURNS. TRANSMISSION ISSUE REPORTED TO FORD IN 2005 AT 38,000 MILES. AGAIN AT 51,000. I OPTED FOR AN AAMCO TRANSMISSION WHEN FORD REFUSED TO COVER. NOW TRANSFER CASE IS MAKING DRIVING DANGEROUS. TURNING ABILITY GREATLY REDUCED. *TR
TL* THE CONTACT OWNS A 2004 MERCURY MOUNTAINEER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE VEHICLE STALLED AND THERE WAS A SUDDEN LOSS OF POWER STEERING. THE CONTACT MENTIONED THAT THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE WAS UNABLE TO BE REPLICATED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 70,000 AND THE CURRENT MILEAGE WAS 110,000. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.