10.0

really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
40,033 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2004 Mercury Mountaineer:

Unsubscribe any time. We don't sell/share your email.

problem #3

May 242010

Mountaineer

  • 70,000 miles
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. hub assemblies making noise front left/right side; unless replaced vehicle unsafe to drive per Ford dealership 10. Brake pads- front/rear need to be replaced going bad (second time needing to be replaced) 11. Needs front alignment-pulls to the right side 12. Fuel filter 13. Needs all new tires 14. Ignition coil -defective needs to be replaced 15. Vehicle gear shifter is stuck while driving won't shift at all sometimes stays stuck at certain speed won't move 16.universal joints 17. Axle housing gasket repairs and corrections done on vehicle: 1.new brake pads on front/rear, replaced spark plugs, resurfaced front/rear rotors.- 8/2009 2.battery replaced- 4/2010 3.tires-flats repaired/patched -8/2010,11/2010,2/2011 4.have not repaired/replaced 5.have not repaired/replaced 6.replaced seal, transmission filter and fluid changed, replaced seal-oil-6/2011 7.have not repaired/replaced 8. vehicle is shaking and loud roar noise hasn't been fixed-6/2011 9.hub assemblies front left/right side replaced -6/2011 10.have not replaced/repaired 11.have not replaced/repaired 12.fuel filter replaced-6/2011 13. Bought brand new set of tires -6/2011 14.ignition coil replaced-10/2009 15. Have not repaired/replaced 16. Have not repaired/replaced 17. Axle housing gasket replaced-04/2011.

- The Woodlands, TX, USA

problem #2

Nov 292005

Mountaineer 8-cyl

  • Automatic transmission
  • 15,000 miles
- the contact stated that while driving the 2004 Mercury Mountaineer with 5000 failure mileage)at 20 mph and turning around in a parking lot the vehicle slowed down to a complete stop with the foot on the brake. The vehicle was turned off and restarted. The vehicle only went approximately 100 yards. The vehicle had to be towed to the dealer, who had not determined the cause of the problem. The current mileage was 44,000.

- Port Tobacco, MD, USA

problem #1

Feb 182007

Mountaineer 8-cyl

  • Automatic transmission
  • 35,100 miles
Brake pedal rubber cover came off during braking. Foot slipped to accelerator causing car to learch forward hitting rear of parked car and causing damage to that car.

- Scarborough, ME, USA