Threaded hole in head?
10-29-2014, 09:56 PM
#1
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Threaded hole in head?
I have a 2002 5.4l and just replaced the engine. Almost done installing when I see a threaded hole the size of a nickel on inside of left head. Bought some block plugs to see if they fit. Anyone know if I'm missing a sensor or plug of some sort. I believe it goes all the way through.
10-30-2014, 05:51 AM
#2
Senior Member
On my 97 4.6 on the front of the drivers side under the intake, it has a CHT sensor, the 5.4s probably had one too.