47 of the
2,646 complaints filed about the Mercury Mountaineer
are about the fuel system —
2% of everything owners reported.
The worst model year for it is 2002.
The contact owns a 2008 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The contact stated the vehicle stalled while driving at an undisclosed speed. The contact stated that several attempts were needed to restart the vehicle to continue driving. The contact stated that the gear shifter intermittently failed to move to the intended position. The contact stated that there was an abnormal fuel odor inside the cabin of the vehicle, and the fuel level was lowered sooner than normal. The vehicle was taken to the dealer to be diagnosed; however, the result was not provided. The contact stated that there was a code for an EVAP failure. The vehicle was not repaired. The vehicle was taken to another dealer, Peoria Ford (9130 W Bell Rd, Peoria, AZ 85382) however, the contact was not provided the cause for the failure. The vehicle was taken to an independent mechanic; however, the vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 200,000.
NHTSA complaint #11684759 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 1997 MERCURY MOUNTAINEER. THE CONTACT STATED WHILE THE VEHICLE WAS STATIONARY, THE VEHICLE STALLED. THE CONTACT STATED NO WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN UNKNOWN DEALER TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE FUEL PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER HAD NOT BEEN INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 385,000.
NHTSA complaint #11402578 — an unverified report by a vehicle owner.
TAKATA RECALL WHILE MY VEHICLE IS IN MOTION, & WHEN I STOP AT A STOP LIGHT, IT'S SUDDENLY SHUTS OFF. THIS HAS HAPPENED SEVERAL TIMES WHILE ON THE HIGHWAY AT HIGHWAY SPEEDS, & ON CITY STREETS AT NORMAL SPEEDS. IT HAS PROVEN DANGEROUS SEVERAL TIMES. WHEN I PUT THE VEHICLE IN REVERSE, THE VEHICLE JERKS VERY HARD. ALSO WHEN I DRIVE FOR MORE THAN 6 TO 7 MILES AT HIGHWAY SPEEDS, A TIRE PRESSURE SENSOR COMES ON.
NHTSA complaint #11196908 — an unverified report by a vehicle owner.
I PURCHASED THIS VEHICLE RECENTLY WITH ONLY 40,000 MILES. THE CAR KEEPS STALLING OR DYING AS YOU MAY SAY AS I DRIVE. IT WILL BE OKAY FOR A SHORT PERIOD OF TIME AND THEN JUST DIE RIGHT ON THE HIGHWAY! ONCE IT DIES ONCE, THE CAR WILL CONTINUE TO DO SO OVER AND OVER AGAIN UNTIL THE ENGINE HAS COOLED DOWN. I HAVE THE ENGINE CODES OF P2104, P2111 AND P2135 WITH A REFERE TO P2101. I HAVE BROUGHT IT TO SEVERAL MECHANICS AND PAID WELL OVER $1,000 TO FIX THIS PROBLEM AND IT JUST CONTINUES. I AM AFRAID MY FAMILY MAY ALL DIE! WERE ON 93 RECENTLY HEADING TOWARD BOSTON AND MY CAR DIED RIGHT AT THE INTERSECTION OF 495. I HAD ALL MY CHILDREN IN THE CAR AND IT WOULD NOT RESTART. I HAVE FIXED THE FUEL SYSTEM (ERROR CODE LAST TIME), HAD A COMPLETE TUNE UP, AND THROTTLE SENSOR ETC.
NHTSA complaint #11022125 — an unverified report by a vehicle owner.
2003 MERCURY MOUNTAINEER RECALLS I HAVE HAD TO CHANGE THE INTAKE MANIFOLD, IGNITION COILS, I'M HAVING A GAS SMELLS NOW, TRANSMISSION THUMPS HARD WHEN GOING INTO FIRST GEAR, SOUNDS LIKE MY REAR END IS ABOUT TO FALL OUT, MY FRONT SEAT IS ELECTRIC AND DOESN'T MOVE, THE O/D LIGHT COMES ON, CHECK ENGINE LIGHT ON, BRAKE LIGHT ON, I KEEP TRYING TO FIX EVERYTHING THE MORE I FIX THE MORE PROBLEMS THAT COME UP, I HAVE CHECK THE RECALL LIST FOR 2003 MERCURY MOUNTAINEER RECALL ON TRANSMISSION AND ALSO CALLED THE FORD CO THEY SAID THERE IS NOTHING. THE PROBLEM IS GETTING WORST AND AFRAID I WILL BE ON THE HIGHWAY WITH MY GRANDCHILDREN WHEN IT BREAKS. I'VE HAD TRANSMISSION LEVEL CHECKED SAID IT WAS FINE. GETTING READY TO DO A COMPLETE TUNE-UP ON IT TO SEE IF THAT WILL HELP WITH THE SMELL OF GAS AND MAKE IT RUN BETTER. IT IDLES HIGH. IT'S WORST WHEN I'M ON THE HIGHWAY.
NHTSA complaint #10907125 — an unverified report by a vehicle owner.
WHEN I USE THE CRUISE CONTROL AND THEN TURN IT OFF I CAN'T SEEM TO PUSH MY GAS PEDAL WHEN YOU ARE DRIVING THE VEHICLE. I HAVE TO KEEP PUTTING EXTREME PRESSURE ON THE ACCELERATOR PEDAL UNTIL SOMETHING BREAKS OR POPS AND THEN IT ALLOWS ME TO PUSH THE PEDAL. I KEEP HAVING PROBLEMS WITH SMOKE COMING FROM ON TOP OF THE STEERING COLUMN LIKE SOMETHING IS BURNING WHEN YOU ARE DRIVING, NOW I HAVE ELECTRICAL PROBLEMS TO WHERE MY HORN WILL NOT WORK ANYMORE. I KEEP HAVING PROBLEMS WITH THE FRONT FRAME OF THE SUV. THE FRAME SOUNDS AND FEELS LIKE IT IS GOING TO FALL APART AND IT DOESN'T MATTER IF YOU ARE DRIVING OR STATIONARY. THE MECHANIC SAYS IT IS THE SWAY BAR THAT IS CAUSING THAT PROBLEM. I HAVE BEEN CALLING FORD ABOUT IT AND THEY KEEP SAYING THERE IS NO RECALL ON MY VEHICLE.
NHTSA complaint #10904769 — an unverified report by a vehicle owner.
THIS VEHICLE IDLES VERY LOW AND STALLS AT VARIOUS SPEEDS. NO WARNING IS GIVEN ENGINE JUST SHUTS DOWN. SPARK PLUGS HAVE BLOWN TOTALLY OUT FROM THE ENGINE SEVERAL TIMES.
NHTSA complaint #10820147 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2003 MERCURY MOUNTAINEER. WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE SUDDENLY SHUT OFF. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE FUEL PUMP WAS FAULTY. THE FUEL PUMP WAS REPLACED, BUT THE FAILURE CONTINUED. NO FURTHER INFORMATION WAS AVAILABLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 113,000.
NHTSA complaint #10736214 — an unverified report by a vehicle owner.
DRIVING AT NORMAL SPEED OF APPROXIMATELY 40 MPH ON A CITY STREET, THE SPARK PLUG AND COIL SHOT OUT FROM THE #2 CYLINDER. A LARGE PERCUSSION BANGING SOUND EMITTED FROM UNDER THE HOOD WHICH WAS THE DETECTABLE EVIDENCE SOMETHING HAD JUST GONE DESPERATELY WRONG WITH THE ENGINE.
NHTSA complaint #10731914 — an unverified report by a vehicle owner.
FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
ONE OF THE BRAIDED STAINLESS STEEL FUEL LINES THAT ATTACHES TO THE ENGINES FUEL RAIL DEVELOPED A LEAK. I KEPT SMELLING A STRONG ODOR OF GAS, BUT I COULD NOT FIND OUT WHERE IT WAS COMING FROM. AFTER TWO WEEKS OF SMELLING THE GAS, I TOOK IT TO A GARAGE AND THEY SHOWED ME THE GAS SQUIRTING FROM THE BRAIDED HOSE GOING TO THE ENGINE. I TOOK THE VEHICLE TO THE FORD DEALER AND SHOWED THEM THE LEAK. THEY TOOK THE VEHICLE IN THEIR SHOP AND REMOVED THE FUEL LINES. BECAUSE OF THE AGE OF THE VEHICLE, FORD DOES NOT PROVIDE ANY REPLACEMENT PARTS. I WAS UNABLE TO GET REPLACEMENT FUEL LINES FROM FORD. I CHECKED WITH "JUNK YARDS" ALL OVER THE COUNTRY. I HAD NO LUCK FINDING REPLACEMENT FUEL LINES. JUNK YARDS CUT THE FUEL LINE WHEN THEY PULL ENGINES. I FINALLY LOCATED A COMPANY IN NEW CASTLE, DE THAT SUPPLIES HYDRAULIC HOSES, ETC. I TOOK MY OLD FUEL LINES TO THEM AND THEY REMOVED THE FITTINGS AND INSTALLED THEM ON NEW STAINLESS STEEL BRAIDED LINES. I TOOK THE NEW LINES BACK TO THE FORD DEALER AND THEY INSTALLED THEM ON MY VEHICLE. THEY SAID THE NEW HOSES HAD NO LEAKS. THE FORD DEALER CHARGED ME OVER $400.00 TO REMOVE THE OLD HOSES AND INSTALL NEW HOSES. THE SHOP IN NEW CASTLE, DE ONLY CHARGED ME $40.00 FOR A PAIR OF NEW HOSES. I'M VERY LUCKY I DID NOT HAVE AN ENGINE FIRE. THESE STAINLESS HOSES ARE USED ON A LOT OF FORD VEHICLES. FORD SHOULD BE REQUIRED TO SUPPLY REPLACEMENT HOSES.
NHTSA complaint #10680325 — an unverified report by a vehicle owner.
ON THE BALTIMORE-WASHINGTON PARKWAY (295 N ) NORTHBOUND, CHANGED LANES TO THE LEFT AND ACCELERATED. THE GAS PEDDLE WAS PUSHED TO THE FLOOR, STAYED THERE AND WOULD NOT RELEASE. I STOOD ON THE BRAKES, BUT ONLY SOMEWHAT SLOWIED THE ACCELERATION. THE VEHICLE CONTINUED UNTIL WE REACHED ABOUT 80MPH AND COMING CLOSE TO REAR ENDING THE VEHICLE IN FRONT OF ME. I WENT OFF ON THE SHOULDER AND TURNED OFF THE IGNITION KEY TO GET THE VEHICLE STOPPED. THE BRAKE OVERHEATED BRAKES. I COULD NOT SEE A PROBLEM. THIS WAS NOT CAUSED BY A FLOOR MAT. THE PEDAL WAS STUCK TO THE FLOOR. I WIGGLED AND PULLED AND IT COME BACK UP WITH A POP. IN DAYLIGHT THE NEXT DAY, I INSPECTED THE PEDAL AND PUSHED IT DOWN. IT AGAIN WENT TO THE FLOOR AND STAYED THERE. I SLID UNDER THE DASH AND FOUND THAT THE HORIZONTAL PIN THAT HOLDS THE PEDAL TO THE FLOOR BRACKET HAD BACKED OUT SIDEWAYS FROM RIGHT TO LEFT, ALLOWING THE PEDAL TO GO SOMEWHAT SIDEWAYS AND THE MOTOR FOR THE ADJUSTABLE PEDAL ASSEMBLY HAD CAUGHT ON A METAL BRACKET KEEPING THE PEDAL FROM RETURNING TO THE UP POSITION. I REMOVED THE PEDAL ASSEMBLY AND INSPECTED THE PROBLEM. THIS IS POOR ENGINEERING AND THERE SHOULD BE A RECALL.. THERE ARE NO CLIPS OR PINS TO HOLD THE PEDAL PIN IN PLACE ! ! ! THE ASSEMBLY RELIES ON SLIGHT INTERFERENCE BETWEEN SPLINES ON THE PIN AND SPLINES INSIDE WHERE IT GOES THROUGH THE PEDAL. WHAT HAPPENED WAS, THAT OVER A PERIOD OF TIME, FROM THE PEDAL WIGGLING, THE PIN BACKED OUT.FROM USE, ON ITS OWN. AGAIN, THIS NOT SUFFICIENT TO KEEP THE PEDAL ASSEMBLED. IT NEED CLIPS ON BOTH ENDS OR COTTER PINS ON BOTH ENDS OF THE PIN ASSEMBLY. A CONCERN IS THE USE OF PLASTIC BRACKET TO MOUNT THE PEDAL TO THE FLOOR. IN MY PAST EXPERIENCE, THE MOUNTING BRACKETS HAD BEEN MADE OF METAL. PLASTIC FATIGUES FASTER THAN METAL AND IS PRONE TO CRACKING AND BREAKING.
NHTSA complaint #10633440 — an unverified report by a vehicle owner.
FIRST OFF WHEN I BOUGHT THE VEHICLE THE REAR WIPER DOES NOT WORK. SECONDLY WHEN YOU PUT THE VEHICLE IN REVERSE IT JOLTS BEFORE GOING INTO REVERSE. FINALLY IT ONLY LET'S YOU PUT SO MUCH OF FUEL INTO THE GAS TANK AT A TIME BEFORE STOPPING THE FUEL FLOW INTO THE GAS TANK.
NHTSA complaint #10617059 — an unverified report by a vehicle owner.
WHILE DRIVING THE MOUNTAINEER I WAS SLOWING FOR A STOPLIGHT SHORTLY AFTER STARTING IT UP (HAD DRIVEN ABOUT 1/3 MILE). THE ENGINE SUDDENLY STARTED TO SPEED UP AND REQUIRED SIGNIFICANT EXTRA BRAKING FORCE TO COME TO A STOP. I PUT THE CAR IN NEUTRAL AND THE ENGINE RAN AT ABOUT 3,300 RPM FOR ABOUT 10 SECONDS. THIS IS THE THIRD TIME THIS HAS HAPPENED. THE FIRST TIME THE THERMOSTAT WAS REPLACED. THE SECOND TIME THE THROTTLE BODY WAS REPLACED. THE THIRD TIME THE VEHICLE WAS CHECKED BUT NO DEFECT COULD BE FOUND. THE SECOND TIME I ALSO PUT IT IN NEUTRAL AND IT ALSO RAN AT ABOUT 3,300 RPM FOR ABOUT 10 SECONDS.
NHTSA complaint #10534451 — an unverified report by a vehicle owner.
PURCHASED IN JUNE 2009 AND HAVE HAD PROBLEM AFTER PROBLEM. MOUNTAINEER PREMIER AWD. TRANSMISSION ISSUE, FEELS LIKE YOU'RE GETTING HIT FROM BEHIND WHEN COMING TO A STOP. RADIATOR LEAKS. BACK LIFT GATE RANDOMLY OPENS, WON'T LATCH. WHEN IT RAINS, WATER COMES IN THROUGH THE INTERIOR LIGHT MOUNT AND THROUGH DVD PLAYER. SPARK PLUGS NOT EASILY REPLACED, BROKE OFF AND HAD TO BE TOWED TO A SHOP FOR REMOVAL. GAS UNABLE TO BE PUMPED PROPERLY I CAN PUT IN .25 AT A TIME IF I'M LUCKY. IT TAKES 20 MINUTES TO PUMP HALF A TANK OF GAS. I LOVE THE FEATURES THIS VEHICLE HAS BUT THIS HAS BEEN SUCH A HASSLE.
NHTSA complaint #10512649 — an unverified report by a vehicle owner.
THE MERCURY MOUNTAINEER WILL NO LONGER TAKE IN FUEL PROPERLY. CAN NOT PUT IN MORE THAN A HALF A GALLON OF GAS AT A TIME. TOOK IT TO A MECHANIC AND THEY SAID THERE WAS NOTHING BLOCKING THE GAS FROM ENTERING THE TANK. HE SAID IT WAS THE AUTOMATIC FUEL SHUT OFF THAT WAS INSTALLED IN THE VEHICLE. HAVE NOT REPLACED IT YET.
NHTSA complaint #10448460 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE AUTOMATIC FUEL PUMP SHUT OFF WOULD ACTIVATE WHENEVER FUEL WAS DISPENSED INTO THE FUEL TANK AT ANY FUEL LEVEL CAPACITY. IN 2009, THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE FUEL VALVE WAS REPLACED. THE SIMILAR FAILURE RECURRED AND THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 50,000. UPDATED 03/16/12 *BF THE CONSUMER STATED THE VEHICLE WOULD ONLY TAKE A GALLON OF GAS. UPDATED 05/11/12
NHTSA complaint #10446357 — an unverified report by a vehicle owner.
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT SHE WAS UNABLE TO REFUEL THE VEHICLE. THE DEALER INFORMED THE CONTACT THAT THE FILLER NECK ASSEMBLY NEEDED TO BE REPLACED. THE MANUFACTURER HAD NOT BEEN NOTIFIED. NO REPAIRS WERE PERFORMED. THE CURRENT MILEAGE WAS 101,000 AND THE FAILURE MILEAGE WAS 60,000.
NHTSA complaint #10444401 — an unverified report by a vehicle owner.
CHECK ENGINE LIGHT WAS ON. RAN DIAGNOSTICS TO DETERMINE THE FUEL TANK WAS NOT PULLING A VACUUM. DETERMINED THE FUEL FILLER NECK PIPE WAS CRACKED AT THE TOP OF THE LINE NEAR THE TANK CAP. WENT TO REPLACE THE FUEL FILLER NECK PIPE AND FOUND OUT WHERE THE PIPE MEETS THE TANK, MORE THAN 1/2 OF THE DIAMETER OF THE CONNECTION WAS MISSING (RUSTED THRU) AND BROKE OFF WHILE TRYING TO REMOVE THE HOSE (THE METAL ATTACHMENT FROM THE TANK IS STUCK IN THE FILLER NECK HOSE). THE OUTSIDE OF THE TANK WAS WET WITH FUEL. THE REST OF THE TANK IS SOLID WITH NO THIN WALLS. REPLACED TANK AND FILLER PIPE WITH NEW.
NHTSA complaint #10439981 — an unverified report by a vehicle owner.