hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
54,000 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.

2005 Mercury Mountaineer engine problems

engine problem

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2005 Mercury Mountaineer Owner Comments

problem #2

Jul 162010


  • 73,000 miles


My Mountaineer stalls without warning while going about 35 mph but after a few minutes can restart. It has done this 4 times over the last 3 or so months. In addition twice it would not start (it had been about 30 minutes since I drove it) and it had to be jumped. I replaced the battery thinking that was the problem but it persists. I brought it to a regular garage once, who kept it for a day and found nothing wrong. I then brought it to a Mercury dealer who kept it for 2 days but found no codes or problems. It just stalled again two nights ago while I was driving 35 mph without and restarted a few minutes later. The dealer had it for a day but again found no codes or problems. So far I just put in a new battery and they changed the oil and filter.

- Duxbury, MA, USA

problem #1

Jun 182009


  • 35,000 miles
Without warning of any kind the engine quits under 35 mph, sometimes with cruise control on. After car rolls to a stop, it can restart right away. Loss of power steering and brakes. Dealer says no codes to back up complaint. This has as happened at least 3X spread over 35,000 odometer miles.

- Stafford, TX, USA

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