Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
80,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. replace spark plugs (1 reports)
2004 Mercury Mountaineer engine problems

engine problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2004 Mercury Mountaineer:

Unsubscribe any time. We don't sell/share your email.

2004 Mercury Mountaineer Owner Comments

problem #1

Jun 022015

Mountaineer 4.6L V8

  • Automatic transmission
  • 80,000 miles

A D V E R T I S E M E N T S

Very poor head design. The engineers had to have the foresight to know this problem would arise after the vehicle is out of warranty. The plugs do not require replacement until 100k. By then the spark plugs are well on their way to becoming seized in the head making replacement very expensive and time consuming.

- , Dunedin, FL, USA

Not what you are looking for?