really awful
Crashes / Fires:
1 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
74,380 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 Monterey engine problems

engine problem

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2004 Mercury Monterey Owner Comments

problem #10

Nov 042016


  • 63,000 miles


The contact owned a 2004 Mercury Monterey. The contact stated that when the gear shifter was placed into the reverse position and backing out of a parking space, the vehicle accelerated on its own and crashed into a fence. The failure recurred and the vehicle was towed to a body shop. There were no injuries and a police report was not filed. The vehicle was not diagnosed or repaired. The manufacturer was not notified. The VIN was invalid. The approximate failure mileage was 63,000.

- Bremerton, WA, USA

problem #9

Jul 152014

Monterey 6-cyl

  • 148,000 miles
While driving the van the lights on the dash board goes out. The speed declines slightly, and the headlights blink on and off. The radio turns on and off. The heat turns on and off. The alarms inside starts to chime. The power is lost to the windows and the door locks. When driving at night the dash lights go off and when this happens you cannot see the speedometer or anything else for that matter. This really needs to be looked into. I'm afraid that this electrical problem will soon cause a fire of some sort.

- Taylor, MI, USA

problem #8

Sep 082014

Monterey 6-cyl

  • 145,000 miles
When driving the lights on the dashboard panel, blinks on and off consistently. Stays out for 1-2 minutes.after which the headlights start to go out stays off for 1-2 minutes. Then the car starts to jerk and decline in speed. The speedometer goes to zero then jumps back to actual speed. When the power is out there is complete loss of power to the windows and interior lights and door lock. Took the car in for service he said that he has had many people come in with this type of van with the same problem. Thus is dangerous when driving at night with loss of visual aid. He said that only a Ford dealer can repair the problem. This is frightening and wreck less.

- Taylor, MI, USA

problem #7

Sep 132013

Monterey 6-cyl

  • 100,100 miles


Brake pressure switch triggers traction control off light, and cruise control will no longer work.

- Pratt, KS, USA

problem #6

May 172013

Monterey 6-cyl

  • 30,000 miles
The contact owns a 2004 Mercury Monterey. The contact stated that while stopped at a stop light, the vehicle was hesitant upon acceleration. The vehicle was taken to an independent mechanic for diagnosis. The mechanic stated that the torque converter would have to be replaced. There was a recall under NHTSA campaign number: 12V006000 (power train) that could have been related to the failure. The manufacturer was made aware of the failure and stated the VIN was not included. The vehicle was repaired. The approximate failure mileage was 30,000.

- Baltimore , MD, USA

problem #5

Sep 192011

Monterey 6-cyl

  • 124,800 miles
It is a well cared for 2004 that all of a sudden started to have a little shake when accelerating. Once I got up past 50-55ish it almost went away. I assumed I had a wheel out of balance so when I had it in for an oil change a few days later, I had them do a rotation and balance. That really didn't fix anything and it got worse. If I was accelerating up hill(which I have to do a lot since I live at the bottom of a hill) then it was like I was driving over hundreds of broomsticks that someone had lay across the road. I took it to a shop (not my usual one, but it was very close to home) to see what they thought. They looked and said cv shaft. When I was able to get it into my regular shop two days later, they looked at it and said 'found transaxle output shaft bearing on right side axle very loose causing excessive movement with right axle.' He said the right axle was basically loose where it attached to the transmission. They said they would have to research if it was actually a bushing or a bearing in order to tell me the repair cost. Monday morning I get a call saying basically I need a new transmission. Now the vibration isn't as bad, but is still there. It also feels like it is wanting to take off while I am driving at a constant speed. Not chugging out, but like all of a sudden it gets a little surge of power then stops. Almost as if someone else is tapping on the gas pedal, then letting off. This happens whether I am using the cruise control or not.

- Gilbert, MN, USA

problem #4

Dec 152004


  • 100 miles


2004 Mercury Monterey 88K, complained from time of purchase that the cruise would not always set at first try. Now it won't set at all.

- Springfield, IL, USA

problem #3

Aug 152009


  • 50,000 miles
I have brought my vehicle into southgate Lincoln Mercury in southgate mi several times prior to the torque converter repair. Since the repair I have continued to experience problems with drivability. Gas mileage has reduced greatly (was around 17-19) down to 13.8. the vehicle drives at high RPM's and I still experience where the RPM will kick up briefly then will go back down. My complaint to the dealer was submitted again just prior to warranty expiring and now I am stuck with a vehicle that they can't seem to repair. I continue to get that they can't identify a problem.

- Wyandotte, MI, USA

problem #2

Dec 192009


  • 49,000 miles
The contact owns a 2004 Mercury Monterey. After turning on the vehicle, she applied the accelerator pedal, but the vehicle would not move. She shifted the vehicle into reverse, and the vehicle began to move slowly. A technician from the dealer stated that the speed censor failed. However, they ran a second diagnostic test, and could not determine the cause of the failure. No repairs were made. The vehicle was taken home and the failure re-occured. The failure and current mileages were 49000.

- Prince George, VA, USA

problem #1

Jan 102008

Monterey 6-cyl

  • Automatic transmission
  • 33,800 miles
The contact owns a 2004 Mercury Monterey. While driving approximately 65 mph, the vehicle began to hesitate. The contact depressed the accelerator pedal, but the speed decreased and the rpms increased. The contact pulled over and exited the vehicle. The vehicle then caught fire under the hood near the windshield. There were no injuries. The dealer has been notified. The current and failure mileages were 33,800.

- Newburn, NC, USA

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