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View Poll Results: What should be done with this hole?
Seal it up 0 0%
Hole left open intentionally, leave it be 2 22.22%
Hole intentional, but plug came out, plug it 4 44.44%
NSFW 3 33.33%
Voters: 9. You may not vote on this poll

 
 
Old 11-13-2018, 10:27 AM
 
764 posts, read 2,119,905 times
Reputation: 826

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Nissan left a 3/4" diameter hole the floor of my car right through to the outside.

Location: Front passenger, to the right of the floorpan, under a big weld.
Through: A thick structural part of the unibody. A foot to the rear of the control arm.
How I found it: Ripped up the carpet to repair a hole in the floor pan.
Wait...there's another!: Nearby there's a 1/4" hole that goes all the way though, also.

These can't be accidental. The placement seems intentional. Also, the factory made this hole. Is it a drain hole and the plug came out? I don't think so because the car has lots of rubber plug and they get cemented in over time. Also, that other small hole is right nearby. Anybody know that the deal is? Should I seal them up or leave them be?
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Old 11-13-2018, 10:29 AM
 
3,688 posts, read 2,053,507 times
Reputation: 6421
pictures ?
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Old 11-13-2018, 10:38 AM
 
764 posts, read 2,119,905 times
Reputation: 826
Right, pictures. Good idea. General location (where flashlight illuminates). And really zoomed in to see hole concealed behind the weld. Hole from outside.
Attached Thumbnails
The factory left holes in the car floor...what the heck?-20181113_104946.jpg   The factory left holes in the car floor...what the heck?-20181113_105004.jpg   The factory left holes in the car floor...what the heck?-20181113_105042.jpg  
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Old 11-13-2018, 10:41 AM
 
Location: San Ramon, Seattle, Anchorage, Reykjavik
1,682 posts, read 717,065 times
Reputation: 2368
There should be a plastic plug in that floor pan hole. This is a drain hole.
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Old 11-13-2018, 12:00 PM
 
Location: Aurora Denveralis
3,387 posts, read 1,139,775 times
Reputation: 4480
It's all on you... shoulda bought every option.
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Old 11-13-2018, 02:22 PM
 
Location: Florida
4,459 posts, read 2,478,984 times
Reputation: 7914
I had this problem when a tire shop raised it on a lift incorrectly. Sealed the holes, no more problem.
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Old 11-13-2018, 02:36 PM
 
Location: Metro Detroit Michigan
2,756 posts, read 728,696 times
Reputation: 2268
What year vehicle? Are you the original owner if not maybe the previous owner had wires or something else and forgot to put plugs back in after he got rid of the vehicle, could be a number of reasons.
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Old 11-13-2018, 02:41 PM
 
Location: Louisville KY
4,045 posts, read 3,591,305 times
Reputation: 3194
Tbey're there intentionally to aid manufacturing. They should have plugs in them, practically all cars have them. They are probably used to move/lift car on assembly line.
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Old 11-13-2018, 02:47 PM
 
Location: Metro Detroit Michigan
2,756 posts, read 728,696 times
Reputation: 2268
Quote:
Originally Posted by JaxRhapsody View Post
Tbey're there intentionally to aid manufacturing. They should have plugs in them, practically all cars have them. They are probably used to move/lift car on assembly line.
Correct they are there so frame can be turned in many directions for robotic spot welders to weld other parts to the unibody. Remember that whole vehicle body is made from welded steel panels with different bends and holes to give the substructure strength. They call that process body in White because of the bare steel look before they get primed and painted.
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Old 11-13-2018, 02:52 PM
 
Location: BFE
578 posts, read 131,346 times
Reputation: 1394
They are "Dutch Uncles". Hence, the vote!
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