2004 Mercury Mountaineer: hesitation when accelerating

Filed Jan 11, 2008 · Transmission · 40,000 miles · GA

When backing up will hesitate and then fly backwards. Feel of delay in transmission when have come to a stop and going from one gear to next. Is increasing getting worse.

Filed May 14, 2007 · Brakes · 5 miles · FL

Tl*the contact owns a 2004 mercury mountaineer. While driving in reverse and shifting gears, the vehicle hesitated. The cruise control engaged without warning and the vehicle stalled while driving 75mph. The service manager drove with the contact and observed the failure; however, he stated that the vehicle was operating normally. The accelerator also does not engage properly when increasing speed. The dealer stated that the electrical brain failed and attempted to repair it on two occasions. An expert from out of state also inspected the vehicle; however, they were unable to diagnose the failure. While approaching a stop sign, the brakes failed and almost caused a crash. The dealer stated that the master cylinder failed. The failure mileage was 5 and the current mileage was 52,000.

Filed Jun 16, 2006 · Transmission · 23,325 miles · NJ

Both problems happen when backing up. 2004 mercury mountaineer,upon putting it in reverse, will hesitate and then fly backwards. The recall solenoid was put in and the problem stopped for about a year. It has started up again, infrequently. Just 1 week ago, upon backing out of the garage, there was a metal on metal screeching noise and a burning smell. The wheels, wheel wells and undercarriage were checked for foreign objects, and none were found. I left the truck outside that night, and the next day the noise happened again and now happened once in third gear. The same burning smell happened again. I parked the truck and didn't use it all that day. When I went to take it to the dealer the next day, the noise was gone. The dealer wouldn't even look at it as "it wasn't doing it at that time".

Filed Dec 29, 2005 · Transmission · 10,000 miles · AZ

I have had repeated problems with the transmission I.e. A noticeable clunk when the transmission shifts from overdrive to low upon approaching a stop sign. Additionally, when backing and shifting to forward the transmission hesitates and slips before going into forward drive. This causes some anxiety when you have to back from a commercial business into a busy traffic way and the transmission slips leaving you not knowing if your going to be able to avoid approaching traffic from the rear. I have reported the problem to colorado river ford in on at least two different occasions and have had the transmission fluid replaced in accordance with mercury's recall. However, the problem continues. Subsequently,I have changed to bradly ford for repairs. On one occasion immediately after a rain storm and while traversing a highway wash, I slowed the vehicle and straddled the center line (no traffic) to avoid any standing water. Admittedly, there was mud residue on the far side of the wash. Regardless, as I exited the wash and accelerated the transmission shifted from overdrive to low gear causing the rear wheels to spin and I went into a broad side skid to the right and back to the left and to the right again, all of which was as close to a near accident as I want to experience. As a retired arizona highway patrolman I will admit that my speed was too fast for the conditions (estimated speed 30 to 40 MPH). However, I am also of the opinion that the shifting pattern of the vehicle added to the momentary loss of control. Regardless, at this point the vehicle registers 35,500 miles and bradly ford in lake havasu city is going to attempt to rectify the problem. They will be tearing down the transmission for examination. This is after they have already replaced a pressure solenoid and the problem still continues. I do not believe the repair will relieve the problem and will result in my taking a financial loss when I trade the vehicle in.

Filed Feb 28, 2005 · Transmission · PA

While shifting into reverse transmission hesitated three to four minutes before engaging. Then, vehicle shook. Driver drove vehicleto the dealer, and mechanic determined that transmission needed to be replaced.

Filed Aug 30, 2004 · Transmission · NY

Consumer stated that when starting vehicle and placing it in reverse vehicle hesitated, then jumped into gear. Also, vehicle sometimes jumped into gear when placing it in drive, but not as bad as placing it in reverse. Consumer called dealer and manufacturer and was told that they were aware of the problem, but it was not a recall. Consumer was not involved in a collision because of this malfunction but was afraid that one day he may.