Defroster breaks windshield - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 38 Old 12-01-2006, 09:06 PM Thread Starter
james509
Registered User
 
james509's Avatar
2005 TJ Wrangler 
 
Join Date: Nov 2005
Location: Independence Mo.
Posts: 125
Defroster breaks windshield

Have you ever heard of this before? I was setting in my 2005 X letting the ice melt on the windshield the other night, and heard a sharp snap. The glass broke right where the defroster was blowing on it. I have a 5 or 6 inch long crack now. Has this happen to anyone else?


2005 Wrangler X red
4.0 L. 6 speed 4.56 gears
rollup windows soft top SYE with rebuilt & shortened Ford Explorer ft driveshaft
315/75/16 BFG KM2s on 16/8 AR-636
3 in. OME 1 1/2 in. spacers ft. 1.25 JKS body lift Warn XD9000I Currie control arms JKS discos
Dana 44 rear ARBs front & rear Warn Bumpers
james509 is offline  
Sponsored Links
Advertisement
 
post #2 of 38 Old 12-01-2006, 09:13 PM
Erik T.
Registered User
 
Erik T.'s Avatar
2001 TJ Wrangler 
 
Join Date: Feb 2006
Posts: 2,774
Yep, it happens a lot to folks. Especially if you got a chip in your windshield.

I've always been afraid of this happening, especially with Jeep windshields that are almost verticle and catch tons of rocks and gravel. I usually turn the heat on to the floors or torso height.

In other words, I don't use Defroster cause it puts immediate heat on the windshield. This way it warms up more slowly and less likely to crack.

I try to fire up the jeep I good 10 minutes or so before I drive on cold mornings.

-Erik.

Quote:
Originally Posted by mrblaine View Post
Hack work? :rofl: You just described half the modified jeeps on this board.
Erik T. is offline  
post #3 of 38 Old 12-01-2006, 09:21 PM Thread Starter
james509
Registered User
 
james509's Avatar
2005 TJ Wrangler 
 
Join Date: Nov 2005
Location: Independence Mo.
Posts: 125
Thanks, Something I didn't put in the first post is that I had pulled the fuse for the AC compressor so it wouldn't be running all the time on defrost. I wonder if that made the defroster air too hot?

2005 Wrangler X red
4.0 L. 6 speed 4.56 gears
rollup windows soft top SYE with rebuilt & shortened Ford Explorer ft driveshaft
315/75/16 BFG KM2s on 16/8 AR-636
3 in. OME 1 1/2 in. spacers ft. 1.25 JKS body lift Warn XD9000I Currie control arms JKS discos
Dana 44 rear ARBs front & rear Warn Bumpers
james509 is offline  
post #4 of 38 Old 12-01-2006, 09:37 PM
Erik T.
Registered User
 
Erik T.'s Avatar
2001 TJ Wrangler 
 
Join Date: Feb 2006
Posts: 2,774
To be honest I'm not sure, I don't know much about that.

But Wrangler heaters are hot as hell as they are. Sometimes the plastic gets pretty hot to touch on the vents.

-Erik.

Quote:
Originally Posted by mrblaine View Post
Hack work? :rofl: You just described half the modified jeeps on this board.
Erik T. is offline  
post #5 of 38 Old 12-01-2006, 10:06 PM
masetj
Registered User
 
Join Date: Mar 2006
Location: Fort Collins, CO
Posts: 198
Yep just happened to me 2 days ago while driving down the highway. Small chip from a semi truck right by the middle defroster and now there is a crack 5 inches vertical. I had the defroster running for about 15 minutes and the crack grew another inch.

Black 2000 Sahara 4.0 3.73 BB OME Shocks Hand Throttle
masetj is offline  
post #6 of 38 Old 12-02-2006, 12:45 AM
scrnnmssuck
Registered User
1997 TJ Wrangler 
 
Join Date: May 2006
Location: Phoenix
Posts: 108
Every morning the when its cold mine starts to crack slowly but surely alittle more...
scrnnmssuck is offline  
post #7 of 38 Old 12-02-2006, 05:36 AM
davenjeip
Registered User
 
davenjeip's Avatar
 
Join Date: Jan 2004
Location: Port Charlotte
Posts: 993
Had a huge stone chip that turned into a vertical crack.

Turned on my defroster on the trail a few weekends ago and watched a big vertical crack appear.

Very common on all vehicles.

2003 TJ

www.davenjeip.com
davenjeip is offline  
post #8 of 38 Old 12-02-2006, 06:09 AM
Pointblank
Registered User
 
Join Date: Oct 2006
Location: Minnesota
Posts: 55
Its fairly common, usually happens when its cold. The heat from the defrost causes the windshield to slightly expand. A weak spot in the glass, (such as a stone chip), gives a place for a crack to start. Once they start, they usually continue to grow over time.

04 TJ Rubicon, Solar Yellow, 5 speed, 4" suspension lift, 285's(33's), Warn rock crawler front bumper with grille guard, Ramsey 8000 pound winch, JKS UCA's, CV driveshaft
Pointblank is offline  
post #9 of 38 Old 12-02-2006, 06:51 AM
JeepCreepn01
Senior Member
 
JeepCreepn01's Avatar
 
Join Date: Sep 2004
Location: Cincinnati,Ohio
Posts: 943
that crack will just get longer over the winter
JeepCreepn01 is offline  
post #10 of 38 Old 12-03-2006, 08:46 AM
Combatsylvania
Registered User
 
Join Date: Aug 2006
Location: Elmvale, Ontario, Canada
Posts: 1,849
lol, my brother (way back in the day) wanted to defrost the windshield on the wagoneer quickly, and plugged an electric microfurnace in and set it on the dash... CRRAACK

With regards to AC being disabled, your fine.. the AC runs with defrost to remove moisture from the air, its not required to 'cool' the hot air... heck some of us poor souls dont got AC at all..

As mentioned above, it wouldnt hurt to start with floor or dash heat, and once the interior warms a touch, then put on the defroster... Just to limit the shock to the glass..

I would invest in some liquid de-icer, spray that on to melt most of the frost, and use a lower heat setting to melt whats left...

Some of us change our windhshields more often then we change our oil..
Combatsylvania is offline  
post #11 of 38 Old 12-03-2006, 01:18 PM
Erik T.
Registered User
 
Erik T.'s Avatar
2001 TJ Wrangler 
 
Join Date: Feb 2006
Posts: 2,774
What's this liquid DeIcer stuff?

-Erik.

Quote:
Originally Posted by mrblaine View Post
Hack work? :rofl: You just described half the modified jeeps on this board.
Erik T. is offline  
post #12 of 38 Old 12-03-2006, 03:04 PM Thread Starter
james509
Registered User
 
james509's Avatar
2005 TJ Wrangler 
 
Join Date: Nov 2005
Location: Independence Mo.
Posts: 125
As far as I know, I didn't have any rock chips. Jeep dealer quoted me about $200 to replace it. You can bet I'll be careful with this one.

2005 Wrangler X red
4.0 L. 6 speed 4.56 gears
rollup windows soft top SYE with rebuilt & shortened Ford Explorer ft driveshaft
315/75/16 BFG KM2s on 16/8 AR-636
3 in. OME 1 1/2 in. spacers ft. 1.25 JKS body lift Warn XD9000I Currie control arms JKS discos
Dana 44 rear ARBs front & rear Warn Bumpers
james509 is offline  
post #13 of 38 Old 12-03-2006, 03:11 PM
None
Registered User
 
Join Date: Nov 2005
Location: East Coast
Posts: 504
yep happened to me too. bought my brand new LJ august 15th of 05 and october 15th i was driving on a cold morning and the windshield cracked. got it replaced the next day...
None is offline  
post #14 of 38 Old 12-03-2006, 03:14 PM
unsung
Member
 
unsung's Avatar
2006 TJ Wrangler 
 
Join Date: Nov 2005
Location: SW Chicago burbs
Posts: 309
Quote:
Originally Posted by james509
As far as I know, I didn't have any rock chips. Jeep dealer quoted me about $200 to replace it. You can bet I'll be careful with this one.

Does the dealer do the work or do they send it out? You might save money calling a glass house first.
unsung is offline  
post #15 of 38 Old 12-03-2006, 03:23 PM Thread Starter
james509
Registered User
 
james509's Avatar
2005 TJ Wrangler 
 
Join Date: Nov 2005
Location: Independence Mo.
Posts: 125
It will be Factory glass instaled at the dealership. I called a glass place and they wanted $260.

2005 Wrangler X red
4.0 L. 6 speed 4.56 gears
rollup windows soft top SYE with rebuilt & shortened Ford Explorer ft driveshaft
315/75/16 BFG KM2s on 16/8 AR-636
3 in. OME 1 1/2 in. spacers ft. 1.25 JKS body lift Warn XD9000I Currie control arms JKS discos
Dana 44 rear ARBs front & rear Warn Bumpers
james509 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
removing rear windshield washer/defroster harness JohnBarleycorn JK Wrangler Technical Forum 1 04-21-2009 08:19 PM
so why is my defroster cracking my windshield? the_art_of_desi TJ Wrangler Technical Forum 6 11-28-2008 03:33 PM
New breaks Corey4x4man TJ Wrangler Technical Forum 1 01-03-2007 08:49 PM
doing my breaks bobbert350 YJ Wrangler Technical Forum 10 10-03-2006 10:29 PM
breaks breaks and E-brakes YJXtreme YJ Wrangler Technical Forum 8 11-30-2003 08:50 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome