Unlimited Back Window exploded - JeepForum.com

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post #1 of 24 Old 12-13-2007, 04:04 PM Thread Starter
MikeyBWindsurf
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Unlimited Back Window exploded

Hi All,

I'm hoping that someone might be able to shed some light on this for me.
I was driving down the road during our first major snow storm this evening, (2004 Unlimited with hard top). I had recently used the back wiper to view traffic some ways behind me (approx 30 mph).

All of a sudden I hear a "BOOM". My back window shattered, (more like exploded) all over the inside of the jeep. There wasn't another vehicle w/in 100' when it happened. Is this a common occurance? Did anyone else have it happen to them? Would Jeep cover repairs in any way under warranty ? (purchased in '05).

Thanks for any and all input.

MB

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post #2 of 24 Old 12-13-2007, 04:10 PM
BlackBellamy
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I would carefully check the inside of the vehicle for bullet hole, or see if there is a little copper BB rolling around inside somewhere

The top and doors on this vehicle are designed only for protection against the elements. Do not rely on the top and doors to contain occupants within the vehicle or to protect against injury during an accident. Wear seatbelts at all times.
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post #3 of 24 Old 12-13-2007, 04:32 PM
90SaharaJeep
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Yea I've never heard of a window spontaneously explode (even with the snow). Had to be something from the outside hitting it cause like you said, the glass was INSIDE your Jeep.
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post #4 of 24 Old 12-13-2007, 04:49 PM
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Possibly something was jammed between your window and the spare tire, expanded causing pressure against the window? Far fetched but was the first thing that came to my head, other than a bullet or an "extreme" snowball assault.

"Just go over it"
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post #5 of 24 Old 12-13-2007, 04:51 PM
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Quote:
Originally Posted by Black Bellamy
I would carefully check the inside of the vehicle for bullet hole, or see if there is a little copper BB rolling around inside somewhere
x2, or a rock.


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post #6 of 24 Old 12-13-2007, 05:12 PM
redvett94
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Jeep Warrany No. Its not Jeeps fault. See your insurance company. Things happen.

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post #7 of 24 Old 12-13-2007, 05:12 PM
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or the window not being shut in the tailgate and slamming against a tire carrier?
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post #8 of 24 Old 12-13-2007, 05:16 PM
Delta9
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What about the defrost and cold air, I know it's far fetched?
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post #9 of 24 Old 12-13-2007, 05:20 PM
redvett94
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The side and rear windows are all tempered in modern vehicles. A previous scratch on the glass can cause the glass to break.

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post #10 of 24 Old 12-13-2007, 06:12 PM
Rocky529
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Something had to hit your window... it could be natural, but that is very rare.

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post #11 of 24 Old 12-13-2007, 08:28 PM
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probally some bored kids with a bb gun
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post #12 of 24 Old 12-13-2007, 09:00 PM
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If there is a big temperature difference between inside and outside, glass can be extra brittle. Something would still have to cause it.(rock or pressure)

When I was 10, I threw a snowball at a guy and hit a glass door instead. The largest piece of the glass left was about 1 sqare inch.
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post #13 of 24 Old 12-13-2007, 09:27 PM
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post #14 of 24 Old 12-13-2007, 10:02 PM
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Hot air on cold class (ie cold on 1 side hot on the other) will cause the glass to "buckle" so to speak causing the glass to try and expand / contract at the same time causing a lateral (or sheer) effect of the glass.

I have had this personally happen just after I moved from FL to Denver CO. I had a chip in the front windshield from a few years back from a retarded semi truck driver (thats a whole other story). It didnt crack but just a tiny little chip that weakened the structural integrety of the glass and never though anything of it.

A bout 3 years later when I moved up to Denver, co it was prob 12F degrees outside and I had the defrost on HOT full blast to melt some snow / Ice on the outside of the windshield.. I was sitiing at a traffic light and a car drove by and passed me created a nice Blast of cold air on the windsheild a CRACK with 2 hairline fractures right from where that rock hit.

However, since 99% of all auto glass is tempered it should have cracked and stayed in place and not "shattered" and fallen to the ground unless there was some sort of External force pushing on it.

Good luck replaceing it, it will def cost you some $$!

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post #15 of 24 Old 12-14-2007, 11:19 AM
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[QUOTE=EnigmaMan]Ho

However, since 99% of all auto glass is tempered it should have cracked and stayed in place and not "shattered" and fallen to the ground unless there was some sort of External force pushing on it.
QUOTE]

All car windows are tempered.
Only windshields are laminated safety glass. All others are just tempered.
A windshield will hold together due to the laminate, side and rear glass disintegrates into tiny pieces and falls to the ground.
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