Chevrolet Forum - Chevy Enthusiasts Forums

Notices
Silverado & Fullsize Pick-ups The Silverado has been one of the best selling trucks in the US for decades, and is truly proven to be "like a rock".

2014 Chevy Silverado
Platform: Truck, GMT 400, 800, & 900

AC problems

Thread Tools
 
Search this Thread
 
Old July 26th, 2011, 2:21 PM
  #1  
CF Beginner
Thread Starter
 
ah21283's Avatar
 
Join Date: Jul 2011
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Exclamation AC problems
my ac only blows air when i get driving about 40, if im at a red light i get no airflow. any ideas what could be wrong?
ah21283 is offline  
Reply Like
Old July 26th, 2011, 10:41 PM
  #2  
CF Veteran
 
RacerX's Avatar
 
Join Date: Aug 2010
Location: New York City USA
Posts: 1,054
Likes: 0
Received 5 Likes on 5 Posts
Default
have you checked the base of the windshield for debris that is cluttering the air intake?
RacerX is offline  
Reply Like
Old July 26th, 2011, 10:54 PM
  #3  
CF Beginner
Thread Starter
 
ah21283's Avatar
 
Join Date: Jul 2011
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default
yeah, thats not it. im leaning toward the blower motor being broke
ah21283 is offline  
Reply Like
Old July 26th, 2011, 10:56 PM
  #4  
CF Veteran
 
RacerX's Avatar
 
Join Date: Aug 2010
Location: New York City USA
Posts: 1,054
Likes: 0
Received 5 Likes on 5 Posts
Default
if the blower motor didnt work you wouldnt be getting any airflow at all at any speed. Your problem is either restricted airflow into the plenum or lack of vacuum needed to draw open the blend doors.
RacerX is offline  
Reply Like
Old July 26th, 2011, 11:24 PM
  #5  
CF Beginner
Thread Starter
 
ah21283's Avatar
 
Join Date: Jul 2011
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default
its not much air flow, just enough to feel.
ah21283 is offline  
Reply Like
Old July 27th, 2011, 3:56 PM
  #6  
Official GM Rep
 
Chevrolet Customer Service's Avatar
 
Join Date: Mar 2010
Location: Global Headquarters in Detroit, MI
Posts: 4,167
Likes: 0
Received 25 Likes on 22 Posts
Default
ah21283,

I am sorry to hear that you are experiencing this issue. Have you had this issue diagnosed at your local Chevrolet dealership?

Thank you,
Elizabeth, Chevrolet Customer Service
Chevrolet Customer Service is offline  
Reply Like
Old July 28th, 2011, 6:50 AM
  #7  
CF Veteran
 
RacerX's Avatar
 
Join Date: Aug 2010
Location: New York City USA
Posts: 1,054
Likes: 0
Received 5 Likes on 5 Posts
Default
do you hear the blower motor fan in all of its settings? from low to high? if you cannot hear it it may NOT be blowing OR the resistor block may be toast.
RacerX is offline  
Reply Like

Trending Topics

Old July 28th, 2011, 12:31 PM
  #8  
CF Beginner
Thread Starter
 
ah21283's Avatar
 
Join Date: Jul 2011
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default
i hear nothing from 1 to 5. thats why i think its the blower motor
ah21283 is offline  
Reply Like
Old July 28th, 2011, 12:34 PM
  #9  
CF Beginner
Thread Starter
 
ah21283's Avatar
 
Join Date: Jul 2011
Posts: 17
Likes: 0
Received 0 Likes on 0 Posts
Default
is there any way to know if its the resistor? or do i just have to buy a new one and see?
ah21283 is offline  
Reply Like
Old July 28th, 2011, 1:57 PM
  #10  
CF Monarch
 
kevinkpk's Avatar
 
Join Date: Jul 2011
Location: kevinkpk
Posts: 5,917
Received 138 Likes on 130 Posts
Default
Originally Posted by ah21283
is there any way to know if its the resistor? or do i just have to buy a new one and see?
What I'd suggest is apply 12 volts directly to the motor, if it dosen't come on, either the motor or a ground issue
kevinkpk is offline  
Reply Like



Advanced Search
Quick Reply: AC problems


Reply Closed Thread Share

All times are GMT -5. The time now is 11:28 AM.