Denso Iridium Gap Suggestions?
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Senior Member
Joined: Jul 2005
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From: Sooner Country!
Denso Iridium Gap Suggestions?
I am going to install the Denso Iridium IT-16 spark plugs in my 01 5.4L. I have researched and found that the plugs come gapped at 0.44 and the Ford manual says to run a 0.54 gap. Some people regap and some don't. Mike Troyer said something about gapping your plugs due to humidity. I will be changing my spark plug wires also.
Should I regap my plugs? And to what size?
Should I regap my plugs? And to what size?
Senior Member
Joined: Mar 2001
Posts: 4,506
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From: Puyallup, WA
Not sure how you change "spark plug wires" on a COP setup (Coil On Plug)...
Sorry, can't help on the gap either, as I've got plugs that don't need to be gapped.....
I guess I'm not much help at all on this post....
Mitch
Sorry, can't help on the gap either, as I've got plugs that don't need to be gapped.....
I guess I'm not much help at all on this post....
Mitch
Senior Member
Joined: Feb 2004
Posts: 10,390
Likes: 10
Originally Posted by b_j__h
I am going to install the Denso Iridium IT-16 spark plugs in my 01 5.4L. I have researched and found that the plugs come gapped at 0.44 and the Ford manual says to run a 0.54 gap. Some people regap and some don't. Mike Troyer said something about gapping your plugs due to humidity. I will be changing my spark plug wires also.
Should I regap my plugs? And to what size?
Should I regap my plugs? And to what size?
I'll assume you saw this:
https://www.f150online.com/forums/sh...light=IT16+gap
..looks like 0.040 to 0.044 inches to me.
I live in a humid environment too. It's what I run.
Cheers
Grog