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8.7
pretty bad- Typical Repair Cost:
- $610
- Average Mileage:
- 136,750 miles
- Total Complaints:
- 27 complaints
Most Common Solutions:
- threaded insert or new head (16 reports)
- not sure (10 reports)
- was able to put spark plug back in (1 reports)
engine problem
Helpful websites
- No one has added a helpful site for this 2004 F-150 problem yet. Be the first!
A D V E R T I S E M E N T S
Truck started missing, so I ran a diagnostic which showed number 3 spark plug. I replaced all the plugs, and on the test drive the number 4 plug ejected. I pull the plug and coil, disconnected the injector and babied it home. I put the old plug back in, and it seems to hold. Two days later and the number 6 plug has blown out.
- Nathan T., Sherwood, AR, US