Car Problem Reports

Ford F-150 TSB For Possible Ejection of Spark Plug From Cylinder Head

 
Ford F-150 Problem
27 Reports
Me Too
Edit

Model Years Affected: 1991, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006

Engines Affected: 4.6L V8, 4.9L 6 Cylinder, 5.4L V8, V8

Average Mileage: 128,516 mi (50,000 mi - 238,890 mi)

Verified

There is a technical service bulletin for the V8 engines regarding a possible problem with the spark plug being ejected from the cylinder head, damaging the threads in the spark plug hole. If the vehicle is under warranty, cylinder head replacement is recommended. If the vehicle is out of warranty, Ford authorized the use of a specific thread insert to repair the head.

  • Visitor, , 4.6L V8, 165,000 mi

    cylinders #2 and #7 blew out on seperate times. i had to have it tapped and use a steel sleeve. mech. said not enough threads on the head. around $400.00

    Flag This
  • Visitor, , 5.4L V8, 118,000 mi

    The plugs were replaced with Helio coils, new threaded sleeves in the head. Two have ejected. It is limited to the rear on both sides of the heads. Relatively easy fix, if it happens to one, get all 4 rear ones done to save labor. Should be good to go.

    Flag This
  • Visitor, , 4.6L V8

    # 3 blow out at 290,890

    Flag This
  • Visitor, , 5.4L V8, 150,000 mi

    spark plug blew out and had to replace threads

    Flag This
  • Visitor, , 4.6L V8, 110,000 mi

    On the way to vacation cylinder 3 ejected from cylinder head-Great way to start vacation. Stranded for 5 hours finely fixed it! Was able to take old plug out and thread new on in and luckily it did not strip, mileage 65,000. Upon return from vacation I changed all spark plugs. At 100,000 miles number 3 popped again! I again was able to replace and it was not striped. And now, number 4 popped. Not so lucky this time- it's stripped, mileage 110,000. CANNOT BELIEVE THERE ARE NO RECALLS, IT'S BS!!!!! I'VE ALWAYS BEEN A FORD GUY BUT THAT ENDS HERE. IF THIS IS HAPPENING TO ANYONE ELSE, PLEASE REPORT IT AND MAYBE FORD WILL DO SOMETHING ABOUT AND STEP UP AND BACK THEIR PRODUCT!

    DISSATIFIED FORD OWNER

    Flag This
  • Windsong25, , 5.4L V8, 120,000 mi
     Rookie

    Went to advanced auto parts. Bought a rubber boot/spark plug kit made specifically for this problem. Drove it like that for 2 years until my number 3 did the same thing right before winter. Will fix the same way until I can afford to by after market heads.

    Flag This
  • Visitor, , 4.6L V8, 105,000 mi

    #7 Cylinder. 15,000 miles after full tune up where all 8 spark plugs were replaced.

    Flag This
  • Visitor, , 5.4L V8, 234,000 mi

    Started engine and heard a very loud bang and then immediate loud rattle.

    Flag This
  • Visitor, , 5.4L V8, 50,000 mi

    Driven down the rd and it shot out second from the back passanger side spark plug out suddenly. But it still was able to lip it a couple miles to home were the next morning i repaired it

    Flag This
  • Visitor, , 4.6L V8, 89,000 mi

    blew spark plug out of cylinder head

    Flag This
+ See more reports
Ask a Question