Oil drain plug- seriously over-engineered!
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Mountain Pass
Joined: Feb 2015
Posts: 146
Likes: 16
Oil drain plug- seriously over-engineered!
OK this may be a quibble, but what is with the drain plug on my new-to-me 07 Expedition??? Seriously- an o-ring 3/4 up the threads?
Prob is, after 7 years of changes, mostly at the dealer for the previous owner, the threads are somewhat stripped on the head side -probably due to the last section of threads being poorly seated as the o-ring snagged threads...
After inspecting the plug, I was fearing the pans threads to be half dead, and after a quick trip to the local auto parts store I got a replacement generic plug, albeit without the mid-thread o-ring and it fit ok- a little loose in the thread...
WTH was Ford thinking?? Or is this one off oil pan drain plug not factory??
Prob is, after 7 years of changes, mostly at the dealer for the previous owner, the threads are somewhat stripped on the head side -probably due to the last section of threads being poorly seated as the o-ring snagged threads...
After inspecting the plug, I was fearing the pans threads to be half dead, and after a quick trip to the local auto parts store I got a replacement generic plug, albeit without the mid-thread o-ring and it fit ok- a little loose in the thread...
WTH was Ford thinking?? Or is this one off oil pan drain plug not factory??
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Mountain Pass
Joined: Feb 2015
Posts: 146
Likes: 16
Ok so after some surfing I see that it is a Smart-O F3 plug, designed to "fix leaks.
In all honesty, I've never had a leaky drain pulg on any of the 20 or so vheicles I've owned.
So what is different about the Ford 5.4's sump plug/threads??
In all honesty, I've never had a leaky drain pulg on any of the 20 or so vheicles I've owned.
So what is different about the Ford 5.4's sump plug/threads??
Posting Guru
Joined: Feb 2008
Posts: 2,339
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The question isn't what's unusual about Ford's threads, it's what's unusual about your vehicle or the previous owner. It isn't a Ford part, it was added aftermarket for some reason. Maybe he crossed threaded it at some point. I have half a million miles in Fords and never a leaking pan nut.
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