hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
91,247 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Mercury Mountaineer engine problems

engine problem

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2004 Mercury Mountaineer Owner Comments

problem #8

Feb 172016


  • 143,000 miles


My vehicle shuts off while driving. No warning, loses power steering, loses power brakes. It will start righ back up once I shift into park. This happens at all different speeds and temperatures. I could have just got in the car or been driving for hours. Happens at 15mph and 60mph just the same. Have almost been hit from behind of several occasions when this has happened.

- Chambersburg, PA, USA

problem #7

Apr 012015


  • 142,000 miles
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.

- Chambersburg, PA, USA

problem #6

Jun 172014

Mountaineer 8-cyl

  • 99,000 miles
Using cruise control going down a slight grade the engine died. This has happened multiple times in the last few months, so now I know to put the vehicle in netural while still moving and re-start the engine, then pull back down into drive. This isn't easy to do, so be careful not to put in reverse or park while trying to re-start the engine.

- Clarksville, TN, USA

problem #5

Mar 172014


  • miles


The contact owns a 2004 Mercury Mountaineer. The contact stated that the vehicle suddenly stalled. The vehicle was not diagnosed or repaired. The manufacturer was contacted about the failure. The failure mileage and VIN was not available.

- Deacon, NY, USA

problem #4

Jul 092008

Mountaineer 8-cyl

  • 70,000 miles
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.

- Madison , SD, USA

problem #3

Jun 032013


  • 99,750 miles
I purchased a 2004 Mercury Mountaineer first the rear liftgate plastic broke and there's a crack by the emblem on some occasions when put in reverse it makes a loud bang noise or when starting to accelerate but the biggest problem is that on the highway up to 50mph and over there seems to be a rattle under the engine and it gets louder when mph is higher im not sure what it is but im really worried that it maybe a transmission problem and if this problem isn't recalled me and my family plus others are in really big danger its a family car so im starting to worry for my family and there safety these vehicles need to go on inspection and soon so these doesn't lead to any accidents.

- Blue Island , IL, USA

problem #2

Jan 192013

Mountaineer 6-cyl

  • 130,629 miles
Engine stalls when activating cruise control which results in hazardous driving situation due to loss of power steering and brakes. Have to pull over to side of road, put the vehicle in park and restart. Starts every time. Has repeated 3 times. This is a serious flaw in the Ford electrical computer design to result a failure mode that stalls the vehicle engine while under speed.

- Frederick, MD, USA

problem #1

Apr 222008

Mountaineer 6-cyl

  • 45,600 miles
In April 2008 our transmission went. It was rebuilt with all Ford parts. It's has gone again in July 2012. Ford will not do anything to help me. I would like a recall on this make and year and model. This is the 3rd transmission. Unacceptable!!!!!!! I want reimbursement for all 3 transmissions!

- Southington, CT, USA

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