Problem with Fan - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

Closed Thread
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 03-31-2014, 08:47 AM Thread Starter
Newcomer
 
Join Date: Nov 2009
Posts: 2
Problem with Fan

Hey all. First time poster but have been a member for a long time. I looked around and saw some similar threads but nothing exactly like I am experiencing with my cobalt (maybe I missed it I dunno). Wife passed on her 06 cobalt to me when she bought a new car.... everything was fine till about 2 weeks ago. Fan speeds 1-3 have little or no output to them, but 4 works completly normal. I read a thread where someone had a similar instance and someone had mentioned a resistor failing or something to that extent? Anything one else experienced this before?
ibanez122 is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 03-31-2014, 11:09 AM
Super Moderator
 
swanman35's Avatar
 
Join Date: May 2013
Location: SWPA
Posts: 2,068
Well mine acts up too. 3 doesn't work but 1,2 and 4 work. I can feel cold or warm air(wherever the knob is pointed) coming on when it's" off". I was told mine is a switch or something behind the HVAC unit. Someone else will come in and give you a more direct answer though

Sent from AutoGuide.com Free App
swanman35 is offline  
post #3 of 12 (permalink) Old 03-31-2014, 12:57 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Position 4 bypassed the resistor network and Usually never fails. If you have lost 1,2 and 3 chances are it is your resistor network. Easy enough to change at the bottom of the heater box near the blower.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
 
post #4 of 12 (permalink) Old 03-31-2014, 01:33 PM Thread Starter
Newcomer
 
Join Date: Nov 2009
Posts: 2
Quote:
Originally Posted by Coby7 View Post
Position 4 bypassed the resistor network and Usually never fails. If you have lost 1,2 and 3 chances are it is your resistor network. Easy enough to change at the bottom of the heater box near the blower.
Thanks for the answer. Any chance you can direct me to a step by step guide on how to fix? Id rather bypass having to take it to the shop and do it myself!
ibanez122 is offline  
post #5 of 12 (permalink) Old 03-31-2014, 02:30 PM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Sure let me look it up.

---------- Post added at 06:00 PM ---------- Previous post was at 05:54 PM ----------

Check the connector first to make sure it hasn't melted.
You're going to need one of these for starters, ACDelco 1580879

Acdelco 1580879 Blower Motor Resistor | eBay

---------- Post added at 06:15 PM ---------- Previous post was at 06:00 PM ----------

Item number 17 0n here.


---------- Post added at 06:30 PM ---------- Previous post was at 06:15 PM ----------

See same service as Css.net


Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly

Last edited by Coby7; 04-01-2014 at 04:06 AM.
Coby7 is offline  
post #6 of 12 (permalink) Old 04-01-2014, 03:54 AM
Contributor
 
Iceman62's Avatar
 
Join Date: Jan 2014
Location: Eastern NE
Posts: 340
^^^Yep^^^

Little blower fan relay/board...GM failure rate's high, but pretty simple fix. Get the part and google how to replace. Did my son's 01 Cavalier in ~30-min a few years back.

06 Cobalt LS (for my daughter)
MSgt, USAF (Retired)
Iceman62 is offline  
post #7 of 12 (permalink) Old 04-01-2014, 09:30 AM
Forum Regular
 
beaverG5GT's Avatar
 
Join Date: May 2013
Location: Uxbridge. ON
Posts: 113
Quote:
Originally Posted by Coby7 View Post
Sure let me look it up.

---------- Post added at 06:00 PM ---------- Previous post was at 05:54 PM ----------

Check the connector first to make sure it hasn't melted.
You're going to need one of these for starters, ACDelco 1580879

Acdelco 1580879 Blower Motor Resistor | eBay

---------- Post added at 06:15 PM ---------- Previous post was at 06:00 PM ----------

Item number 17 0n here.


---------- Post added at 06:30 PM ---------- Previous post was at 06:15 PM ----------

See same service as Css.net


Hello Coby7, I just saw your diagram of the HVAC system and was wondering your thoughts on this noise.
https://www.youtube.com/watch?v=7oXhDsH8FpQ

Last edited by Coby7; 04-01-2014 at 09:58 AM.
beaverG5GT is offline  
post #8 of 12 (permalink) Old 04-01-2014, 09:57 AM
Super Moderator
YourCobalt.com Premium Member


 
Coby7's Avatar
 
Join Date: Oct 2011
Location: Magnetic Hill, New-Brunswick
Posts: 11,820
Garage
Sounds like you broke a shaft on one of the trap doors 4,5 and 11 in the picture above. You should never move the knob at the left of the HVAC control before warm air has circulated a bit in the unit to thaw a possible frozen door. You can strip or brake one of the shafts.

Every minute spent angry is a happy minute lost for ever and ever!!!
Drives 2016 Cocoa Buick Encore 1.4L Turbo auto KL4CJDSB2GB652675
Drives 2016 Sunset Orange Trax LT1 1.4L Turbo auto 3GNCJPSB8GL142716

Never drive faster than your guardian angel can fly
Coby7 is offline  
post #9 of 12 (permalink) Old 04-01-2014, 11:42 AM
Forum Regular
 
beaverG5GT's Avatar
 
Join Date: May 2013
Location: Uxbridge. ON
Posts: 113
Thanks. That's probably what i have done. The sound is louder when the weather is warmer. It will flap away like that and sometimes there will be a louder flap noise like it slams shut. Then it stops for a while.
I am thinking the trap doors then are hinged on both sides, and one side might be broken.
Easy fix? Lots of work to get to it i bet.
beaverG5GT is offline  
post #10 of 12 (permalink) Old 09-03-2014, 09:29 AM
Forum Regular
 
beaverG5GT's Avatar
 
Join Date: May 2013
Location: Uxbridge. ON
Posts: 113
Just got around to taking my dashboard out to try and find the flap flap noise. From what i read, i was expecting worse. It turned out to be foam. Took it out and all functions fine. I thought it might effect the air, but i don't notice any difference. I now have air out both center vents again!.



beaverG5GT is offline  
Sponsored Links
Advertisement
 
Closed Thread

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not 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 On
Pingbacks are On
Refbacks are On

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