8.2

pretty bad
Typical Repair Cost:
$710
Average Mileage:
142,350 miles
Total Complaints:
42 complaints

Most common solutions:

  1. install threaded insert (21 reports)
  2. not sure (16 reports)
  3. replace the engine head (3 reports)
  4. replace coil and all spark plugs - torque down plugs (2 reports)
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« Read the previous 20 complaints

problem #2

Jul 092010

F-150 5.4L

  • Automatic transmission
  • 110,000 miles

Since this is a common problem with the 5.4 engine Ford needs to come up with a fix for this ASAP.

- DAve F., Scottsdale, AZ, US

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problem #1

May 292009

F-150 XL 4.6L V8

  • Automatic transmission
  • 42,000 miles

This appears to be a known problem with the aluminum head, which only has 3 threads in some cylinders, which is not enough to keep the spark plug from ejecting.

- Nick W., Tallahassee, FL, US

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