2003 Mercury Mountaineer Electrical system Problems
- Complaints
- 11about this part
- Share
- 7%of 152 total for the year
- Median mileage
- 87,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the electrical system of the 2003 Mercury Mountaineer, 7% of the 152 complaints for this model year. Where a mileage was given, the median is 87,000 miles. 1 a fire, 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've been review this site and see where several people are experiencing the same issues that I am having with my 2003 Mountaineer. The rear gate is cracking around the emblem. I've have reported this to ford and they tell me I can pay to fix it and if there is recall they will reimburse me. In addition I am also experiencing the door ajar light coming on when all are shut and secure. I have contact ford and several local dealerships. The dealership all tell me their hands are tied until ford makes a decision and that I am not alone. Ford refuses to do anything. …”
NHTSA complaint #10534061, filed 2013-08, 92,123 miles“My 2003 Mercury Mountaineer would stutter and have a jerking motion like it was going to stall and it would do this at any given time. On the 13th of january I was taking my youngest daughter to school and my car started to stutter and then it just stalled on me I had a difficult time starting the car. I then took her to school and I shut the car off to walk her to her classroom and then got back into my car and when I put the key into the ignition and turned the key there was no power my car was dead I had to call the road side assistance number and had to wait an hour for a tow truck. …”
NHTSA complaint #10116317, filed 2005-04, 13,000 miles“2003 Mercury Mountaineer 4.6l-v8: when the vehicle is not under acceleration [stop sign/signal, exiting an expressway to a surface street, coasting] the engine will not hold idle, then stall. The steering & brakes are compromised when the engine stalls. To restart the engine, the headlights go dark for a moment...this is a very serious matter. Decelerating from an expressway to a surface street, on a curved exit ramp , at night makes for an out of control situation where the driver can not see because of engine failure! I've replaced the throttle position censor [tps] with no improvement. …”
NHTSA complaint #10275214, filed 2009-06, 127,000 miles“The word door ajar on my dash board keeps tell me that a door is open when all the doors are closed and I think thats why my inside lights and the lights on my outside mirras takes 15-20 min's to go off after I have alarmed the vehicle and when I get in to drive the lights should go off admedily but they dont.”
NHTSA complaint #10459915, filed 2012-05“The inside dome lights and the lights on the outside side mirrors do not go off until 15 to 20 min's after it has been alarmed this has run down my battery I had to buy a new battery.”
NHTSA complaint #10459912, filed 2012-05Related service bulletins
- 10019800Apr 29, 2006Low oil pressure indication/warning, a/c compressor inoperative and/or no crank condition on 4.6l equipped vehicles.
- 10013319Jan 1, 2005Open fuse f2.20 (5 amp) and/or f2.1 (30 amp) which may result in loss of function of several systems including power seats, adjustable pedals and power door locks.
- 10013116Sep 6, 2004Malfunction indicator lamp (mil) illuminated - system lean diagnostic trouble codes (dtc's) - service tips. Various models including 2004 f-series.
- 10011342Sep 1, 2004No crank/no start condition when vehicle temperature is below freezing (32f/0c).
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 1 | 8% |
| 2009 | 1 | 17% |
| 2008 | 39 | 41% |
| 2007 | 16 | 20% |
| 2006 | 9 | 8% |
| 2005 | 5 | 6% |
| 2004 | 16 | 8% |
| 2003 | 11 | 7% |
| 2002 | 19 | 5% |
| 2000 | 19 | 15% |
| 1999 | 10 | 7% |
| 1998 | 21 | 9% |
| 1997 | 15 | 5% |
Other parts of the 2003 Mercury Mountaineer
59 complaintsTransmission and drivetrain
42 complaintsBrakes
10 complaintsEngine cooling
10 complaintsSuspension
10 complaintsAir bags
9 complaintsVehicle speed control
9 complaintsFuel system
7 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsLatches, locks and linkages
6 complaintsOther or unknown
6 complaintsSteering
6 complaints
← All problems reported for the 2003 Mercury Mountaineer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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