FWD Tech Guides '95-'07 Guides/How-To information for FWD Montes 1995-2007

Repair Guide: Defroster not working? Check this... 2006-2007

  #1  
Old 01-30-2013, 08:33 AM
God_Bot's Avatar
5 Year Member3 Year Member1 Year Member
Thread Starter
Join Date: Jul 2007
Location: Wyoming
Posts: 1,544
Default Defroster not working? Check this... 2006-2007

Okay, so the rear defrosters on these cars have some issues. For some of you that may not be a problem, but I hate scraping my windows every morning when my rear defrost doesn't work.

After a good deal of research I found a write-up about this on an Impala forum so thought I'd check it out on mine and share what I found with you guys.

There is a connector under the fuse block in the passenger kick panel that burns out. The hypotheses is that the connector can't pass the current required for the defroster and gets really hot causing bad things to follow. The fix is to bypass it. Some have done this with an inline fuse and reported that it still heated the fuse holder up pretty well. I haven't heard of any direct connections getting hot and mine was still cool after a 20 minute test period.


Step 1:
Locate the fuse door on the passenger side. I forgot to take a photo of this, but you'll have to pull up the door sill that covers up this area and the door attaches to. This plastic sill is held on with a few connectors under the part along the door. They just pop up, mine came out easy because I've had it off in the past to run my sub amp wire through here.


The arrow is pointing to the connector in question after the panel has been removed.


Step 2:
I found it easier to access the connector by popping it off the wall, it has a christmas tree style plug that you can pop out.


Connector


Showing the blue plug and the hole it came out of.

Step 3:
Determine if this connector is in fact the point of failure.


You squeeze the tabs on one end and the fastener will pull up and swing over.


Yup, not correct at all.

Step 4:
Locate and cut the defroster wire and get it ready to be spliced back together.


The thicker purple wire is the culprit in my car, others have reported that it's black in their cars. Just by looking at the connector and the wires going into it you should be able to tell which is which easily enough.


I just snipped the wires close to the connector and stripped them back a bit.

Step 5:
Connect the circuit! I did this with a crimp/heat shrink connector. I would have soldered if it was available, but others have reported this to work fine. Figure out how you want to connect it and stick it back together! I had just enough length in the wires to make this work, some might prefer to add a little length of wire. It's up to you, just make sure to use the same gauge wire.


My final product.



Edit with an update:


 

Last edited by God_Bot; 02-01-2013 at 08:22 AM.
  #2  
Old 01-30-2013, 08:40 AM
Join Date: Jul 2008
Location: Beach`in Florida
Posts: 33,585
Default

Hi `Garrett,
Great write `up with pictures
Thanks for posting/sharing...I'm sure it will help many member's that have this problem.

Peace/Out from`Space
 
  #3  
Old 01-30-2013, 11:46 AM
The_Maniac's Avatar

Monte Of The Month -- December 2011
Monte Of The Month -- September 2014
5 Year Member
3 Year Member1 Year Member
iTrader: (2)
Join Date: Apr 2010
Location: Mentor, Ohio
Posts: 10,869
Default

A friend of mine found the same info when working on his sister's '06 Impala. With some additional help, we found that burned out connector was NOT her only issue. Where the relay connects on the fuse block under the hood was not making a good connection.

We took the fuse block out, took it apart (despite the notice "No servicable parts inside") and squeezed the forks that hold the relay together a little and it's been working fine now for a couple years).
 
  #4  
Old 01-30-2013, 11:58 AM
GrandPaDave's Avatar

Monte Of The Month -- February 2008
Join Date: Aug 2006
Location: Born in East LA
Posts: 4,286
Default

Originally Posted by Space View Post
Hi `Garrett,
Great write `up with pictures
Thanks for posting/sharing...I'm sure it will help many member's that have this problem.

Peace/Out from`Space
When we used to drive to Mammoth Mtn. to ski a few times each year, we used hot buckets of water every day over my '67 Chevelle......lol!!!

Too bad I don't have pics of those huge snow chains on my enormous L-60-15 belted tires.
 
  #5  
Old 04-06-2013, 02:19 PM
Join Date: Aug 2009
Location: Montreal,Canada
Posts: 55
Default

thanks for the tip,,since I got my 2006 LT my rear defrost has ben bugging me,relays after relays, thanks a lot GM told me I needed a whole new fuse box for 400$ with the relay soldered on,,*******
Duderino
 
  #6  
Old 04-08-2013, 06:55 AM
Join Date: Sep 2012
Posts: 4
Default

I've got the same problem and just move the wire around until it catches. This is a fire hazard in my opinion and should be a recall by GM
 
  #7  
Old 04-09-2013, 09:52 AM
Join Date: Mar 2013
Posts: 1
Default

My car had the same problem. My A/C had been working intermittently as well I was playing in the fuse box and found the fuse for the A/C relay was very loose in it's socket I bent the fuse a little as a temporary fix. Looks like I have more work ahead of me when it dies again.
 
  #8  
Old 01-05-2016, 09:16 PM
Join Date: Jan 2016
Posts: 1
Default

Hello - this is my first post - I am having this problem with my 2007 Monte, is there anyway of getting the pics from this post to help me out? I know it's an older post but any help would be greatly appreciated, thanks! SPD
 
  #9  
Old 01-06-2016, 07:53 PM
Barovelli's Avatar
Monte Of The Month -- April 2016
5 Year Member
3 Year Member1 Year Member
Join Date: Apr 2010
Location: Monterey Bay Area, CA
Posts: 835
Default

Originally Posted by sdaniel32 View Post
Hello - this is my first post - I am having this problem with my 2007 Monte, is there anyway of getting the pics from this post to help me out? I know it's an older post but any help would be greatly appreciated, thanks! SPD
Welcome to the forum.

Here's another thread with pictures. Easy fix, find the plug in the kickpanel, trace the damaged wires, remove them from the plug and splice them together.

https://montecarloforum.com/forum/mo...g-32141/page2/
 
  #10  
Old 02-21-2016, 12:02 AM
Join Date: Feb 2014
Posts: 24
Default

This is not related to slow melting and remain "on"

My 03 melt the ice, Frost and snow. Even deep snow or build-up snow during drive real good and fast. It turns off automatically after 10 min.

But with my 2 07 mc I bought.. first one. It clear up fog good... melt frost slowly. .. can't melt snow, even 1/4 inch of snow. I figured that I have bad rear defrost... also doesn't go off automatically after 10 min.

But when I traded in for another 07, I was surprised that it had same issue!!

Am I only one having this weak rear defroster?
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rjmfa
Monte Carlo Repair Help
10
12-22-2012 12:17 AM
elgato1013
Monte Carlo Repair Help
10
02-06-2012 08:26 PM
SSDriver8
Monte Carlo Repair Help
9
06-13-2010 08:25 PM
orthokneepa
Monte Carlo Repair Help
3
12-12-2007 10:45 PM
mho1970
Monte Carlo Repair Help
2
11-16-2007 03:08 PM


Thread Tools
Search this Thread
Quick Reply: Repair Guide: Defroster not working? Check this... 2006-2007


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.