6.0

fairly significant
Typical Repair Cost:
$500
Average Mileage:
89,600 miles
Total Complaints:
1 complaints

Most common solutions:

  1. requires special toll to remove the broken plugs (1 reports)
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problem #1

Dec 032015

Mountaineer Premier 4.6L V8

  • Automatic transmission
  • 89,600 miles

This is due to a poor 3 valve design. The carbon builds up on the extended tube of the spark plug that extends into the intake manifold, sticks, and breaks off in the intake manifold. Ford has a class action suit regarding this problem.

- John D., Colorado Springs, US

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