Spark plugs location/replacement

Tiny
C0BY
  • MEMBER
  • 1999 LINCOLN NAVIGATOR
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
How do I change the spark plugs? I'm having trouble even locating where they are.
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Tuesday, September 10th, 2019 AT 4:11 PM

1 Reply

Tiny
KASEKENNY1
  • EXPERT
Hi,

Here is the procedure for removing them. The first 4 screen shots show for the dual overhead cam engine (DOHC) and the next 3 are for the single overhead cam (SOHC) engine.

In both cases, you need to remove the coil on plug in order to access the plugs. I suspect you have the DOHC engine because it has a coil cover that you need to remove in order to gain access.

Let me know if you have questions and we can go from there. Thanks
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Tuesday, September 10th, 2019 AT 4:39 PM

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