F150 Ford 5.4L

1915 FORD F-150
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MGROCK69
  • MEMBER
  • 4 POSTS
what is the best spark plugs i can put in...i need to know how to install them. some instructions please. thank you.

2003 F150 Ford 5.4L
78,000 miles
Jun 6, 2007 at 7:49 AM
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INDYUKE
  • ✓Experienced Mechanic
  • 416 POSTS
Stock motorcraft spark plugs are the best. Careful on the removal of the old ones though. They tend to stick and break off in the heads on the late 90's to 2004 models. The dealership has a tool to remove the broken off part, but worst case scenario is to replace the heads if you can't get it out.

Take some penetrating oil to it for a while before attempting it.
Jun 9, 2007 at 7:12 PM
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