2006 Mercury Mountaineer Fuel system Problems
- Complaints
- 5about this part
- Share
- 4%of 117 total for the year
- Median mileage
- 58,945miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 2006 Mercury Mountaineer, 4% of the 117 complaints for this model year. Where a mileage was given, the median is 58,945 miles.
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 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! …”
NHTSA complaint #11022125, filed 2017-09, 42,000 miles“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, filed 2013-05, 58,945 miles“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, filed 2012-02, 95,000 miles“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, filed 2012-01, 60,000 miles“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 the consumer stated the vehicle would only take a gallon of gas. Updated 05/11/12”
NHTSA complaint #10446357, filed 2012-02, 50,000 milesRelated service bulletins
- 10023992Dec 1, 2007Fuel fill--slow or early shut off--built before 11/28/2007.
- 10021052Feb 27, 2007Mil on with dtc p0463 or erratic fuel gauge operation.
- 10019379Jan 1, 2006Malfunction indicator lamp on with pcm diagnostic trouble code p0463 and/or ic diagnostic trouble code b1201 - fuel gauge drops to empty or slow to update after refueling.
- 10013388Oct 31, 2005Fuel gauge slow to update after refueling.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 2 | 15% |
| 2008 | 3 | 3% |
| 2007 | 1 | 1% |
| 2006 | 5 | 4% |
| 2005 | 3 | 4% |
| 2004 | 2 | 1% |
| 2003 | 7 | 5% |
| 2002 | 8 | 2% |
| 2000 | 3 | 2% |
| 1999 | 2 | 1% |
| 1998 | 5 | 2% |
| 1997 | 6 | 2% |
Other parts of the 2006 Mercury Mountaineer
43 complaintsTransmission and drivetrain
39 complaintsEngine
14 complaintsElectrical system
9 complaintsOther or unknown
9 complaintsBody and structure
7 complaintsSeats
6 complaintsBrakes
3 complaintsVehicle speed control
3 complaintsEquipment
2 complaintsExterior lighting
2 complaintsTires
2 complaints
← All problems reported for the 2006 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