2004 Mercury Mountaineer Vehicle speed control Problems

“I had picked up my kids from daycare and I put my vehicle in reverse and backed up. While backing up I heard a loud pop and I got out to see but there was nothing visible. So I put the vehicle in drive and as I was going down the street my vehicle axle broke and my truck hit the street in the middle of traffic. I took it to the ford dealership and they said it was my axle and my differential had broken also, am I am lucky that I didn't have a bad accident with the extend of the damage of the differential. After I fixed that and it cost $2900. …”

“My 2004 Mercury Mountaineer accelerated on it's own as I was pulling into a parking space. The vehicle made a roaring sound. My foot never left the brake pedal and I could not stop it. I jumped the curb, went over a grassy area, over the sidewalk and did not stop until I hit a concrete building at approximately 25-30 miles per hour. It caused significant damage to the building and to the car. Airbag did not deploy. I have had the body damage repaired and my auto insurance has paid over $3,000 for that. …”

“To ford motor company (fmc) via website: your inquiry: has any mechanic every came across a situation similar to my 2004 Mountaineer cruise control problem as follows: every time I set the cruise control between 27-45mph and descend a hill, the engine shuts down! That's right; no power steering, no power brakes, no engine running! This is definitely a safety/warranty issue to me? The Mercury service manager said that he never heard of such a problem and it's going to cost me at least $70.00, just for him to figure out what's wrong! …”

“Just purchased a 2004 Mercury Mountaineer today. Driving home, using cruise/speed control at around 30mph and driving on a slight decline, the vehicle shut down. All indicator lights went on, and I had to coast to the side of the road. I put vehicle in park and restarted it without problem. There were no indicator lights (check-engine, etc.) lit up. Immediately went to local ford dealership and they had no clue, especially since the computer did not have any codes indicating a problem.. I'm canceling the check and returning the vehicle tomorrow.”

“When using the cruise control the vehicle died: all gauge lights came on (battery, engine, etc.) engine died, no power steering, etc. Had to roll to the side of the road, put vehicle in park or neutral and restart. This problem repeats itself ever time I use the cruise control. And, I see there are other owners of this model that have posted the same complaint. Problem first occurred in january of 2008 however continues today. Fortunately when the engine has died every time I have used the speed control it has not caused an accident.... Yet!”