hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
90,333 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.

2007 Mercury Mountaineer engine problems

engine problem

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2007 Mercury Mountaineer Owner Comments

problem #3

Sep 082015


  • 121,000 miles


A repair shop told me that my engine was leaking coolant that could make the engine run hot and fail. After doing some online research, I found that this is a common problem with these vehicles as Ford used a cheap plastic part which easily cracks and allows coolant to leak. The leak also affects other parts of the engine cause them to perform improperly. Ford is aware of this problem but has failed to issue a recall despite their knowledge and the risks to the consumer.

- Mayfield, KY, USA

problem #2

Mar 292014


  • 90,000 miles
The contact owns a 2007 Mercury Mountaineer. The contact stated while driving 40 mph the vehicle stalled without warning. The vehicle was towed to the dealer for inspection and they stated that the engine overheated and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 90,000. The VIN was unavailable.

- Wilmington, DE, USA

problem #1

May 012012

Mountaineer 8-cyl

  • 60,000 miles
I was driving on the highway and noticed that my steering was not working well. My engine was overheating and eventually shut off. I had to pull over on the side of the highway. When I got someone to look at the car, we realized it had no coolant. We filled up the coolant and everything seemed fine. About a month later I noticed that the engine was making the same noise as it had before as if it were working too hard. I checked the coolant and it was completely empty again. I have a friend who also owns the mm and had the same problem. The repair and cost of a new radiator was 1500. Ford/merucy needs to do a recall on this product and get it taken care of. I just purchased this car in January and should not have to be spending so much money on a repair.

- Columbia, MD, USA

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