G37 Sedan

AC problem

Thread Tools
 
Search this Thread
 
Old 08-27-2024, 05:56 PM
  #1  
tec
Registered Member
Thread Starter
 
tec's Avatar
 
Join Date: Aug 2024
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
AC problem

So Im having an issue with my AC and fan system
The air coming out is not cold at all, and no matter how long the ac runs the car doesnt get cold. i already had the condenser replaced and the coolant topped up. I also replaced my cabin air filter and checked all my fuses
I hear a whine when the ac starts up and runs, and the airflow is super weak, even when its maxed out. it feels like its set to 2 or 3, even when fan is set to 4 or 5

Old 08-28-2024, 08:01 AM
  #2  
camopaint0707
Registered Member
 
camopaint0707's Avatar
 
Join Date: Dec 2023
Posts: 83
Received 9 Likes on 9 Posts
well, is the compressor working as it should? Is there refrigerant in the system?
Old 08-28-2024, 10:43 AM
  #3  
ILM-NC G37S
Registered Member

iTrader: (3)
 
ILM-NC G37S's Avatar
 
Join Date: Apr 2014
Location: NC
Posts: 4,261
Received 1,316 Likes on 1,067 Posts
Originally Posted by tec;[url=tel:4334499
4334499[/url]]...I hear a whine when the ac starts up and runs, and the airflow is super weak, even when its maxed out. it feels like its set to 2 or 3, even when fan is set to 4 or 5
What, exactly, is "whining?" Compressor? Radiator/ Condenser fan(s)? Cabin blower?

By "super weak" airflow I am guessing you are referring to the air coming out of the dash vents? If so, likely the blower motor is dying- especially if it has potentially gotten wet.

Is there ANY cold air at the vent at all?
Old 08-28-2024, 03:42 PM
  #4  
tec
Registered Member
Thread Starter
 
tec's Avatar
 
Join Date: Aug 2024
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by ILM-NC G37S
What, exactly, is "whining?" Compressor? Radiator/ Condenser fan(s)? Cabin blower?

By "super weak" airflow I am guessing you are referring to the air coming out of the dash vents? If so, likely the blower motor is dying- especially if it has potentially gotten wet.

Is there ANY cold air at the vent at all?
There is some cold air coming out of the vents but its not very cold, yeah Im talking about the dash vents. even when its maxed not much flow with and without airflow
Im not sure whats whining exactly, but it doesnt happen when the fan is running, only starts when I turn the AC, doubt its the radiator/condener since i just had that changed but other than that I dont know
Old 08-28-2024, 05:04 PM
  #5  
ILM-NC G37S
Registered Member

iTrader: (3)
 
ILM-NC G37S's Avatar
 
Join Date: Apr 2014
Location: NC
Posts: 4,261
Received 1,316 Likes on 1,067 Posts
If there is a trace of cold air at the vents then the system is trying to do it's job.

Air flow is critical in AC systems: to reject heat at the condenser AND ALSO to absorb heat at the evaporator.

It sounds like your cabin blower (fan) is not doing its job. I would first check the cabin air filter to make sure it is not excessive dirty/ blocked/ wet and check the condition of the blower for dirt, rust, corrosion, bearing binding, etc.

Worst case it sounds like you need a new blower. Easy to replace and not too expensive.
Old 08-31-2024, 11:47 AM
  #6  
tec
Registered Member
Thread Starter
 
tec's Avatar
 
Join Date: Aug 2024
Posts: 6
Likes: 0
Received 0 Likes on 0 Posts
So it was a leak in one of the pipes, just needed a new seal.
Old 09-04-2024, 07:42 AM
  #7  
camopaint0707
Registered Member
 
camopaint0707's Avatar
 
Join Date: Dec 2023
Posts: 83
Received 9 Likes on 9 Posts
you're really not helping us help you.
Old 09-04-2024, 08:47 AM
  #8  
ILM-NC G37S
Registered Member

iTrader: (3)
 
ILM-NC G37S's Avatar
 
Join Date: Apr 2014
Location: NC
Posts: 4,261
Received 1,316 Likes on 1,067 Posts
I am glad that the OP has his AC fixed, but frankly the solution (replace a seal) does not align with his symptoms (weak air flow).

Either way, apparently the issue is resolved, OP is happy, so carry on...
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
G37WICKED
G37 Sedan
14
08-26-2023 11:33 PM
Q1808
G37 Coupe
4
08-17-2023 08:55 PM
newspider4re
G37 Convertible
2
09-29-2011 08:35 PM



Quick Reply: AC problem



All times are GMT -4. The time now is 05:59 AM.