airflow becomes weaker. Please! Help

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Sawa

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I'm in trouble. I want you to tell me.
I have a 2007 Tahoe lt.
The air conditioner can be set individually for the driver's seat and passenger's seat.
After starting the engine, the air volume and temperature are fine.
However, after the engine has warmed up (approximately 30-40 minutes), the airflow becomes weaker.
It seems that the amount of water droplets and drainage of the compressor is large.

Below are the parts I replaced.

•Blower motor resistor
•AC Blower Motor w/Fan Compatible
Struts
•Blend Door Actuator x2 Driver's seat temperature, mode switching
•Cabin Air Temperature Sensor
•radiator thermostat
• air conditioner filter

Please help me!

Sawa
 
Last edited:

Doubeleive

Wes
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Location
Stockton, Ca.
I'm in trouble. I want you to tell me.
I have a 2007 Tahoe lt.
The air conditioner can be set individually for the driver's seat and passenger's seat.
After starting the engine, the air volume and temperature are fine.
However, after the engine has warmed up (approximately 30-40 minutes), the airflow becomes weaker.
It seems that the amount of water droplets and drainage of the compressor is large.

Below are the parts I replaced.

•Blower motor resistor
•AC Blower Motor w/Fan Compatible
Struts
•Blend Door Actuator x2 Driver's seat temperature, mode switching
•Cabin Air Temperature Sensor
•radiator thermostat
• air conditioner filter

Please help me!

Sawa
you need a tool like a tech2 to find out what is happening
and @07Burb can you move this to the correct section
 
OP
OP
Sawa

Sawa

TYF Newbie
Joined
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With the Tech-2.

The Tech-2 can pull up the BCM codes and see what they are doing. Your recirc door is probably not closing all the way after time and bleeding off air.

The water droplets could be because of the weather, high humidity, or your system is low on refrigerant.
Thank you for reply!
I haven't replaced the actuator that moves the recirc door yet, so I'll try it.
 
OP
OP
Sawa

Sawa

TYF Newbie
Joined
Feb 10, 2022
Posts
19
Reaction score
4
I'm in trouble. I want you to tell me.
I have a 2007 Tahoe lt.
The air conditioner can be set individually for the driver's seat and passenger's seat.
After starting the engine, the air volume and temperature are fine.
However, after the engine has warmed up (approximately 30-40 minutes), the airflow becomes weaker.
It seems that the amount of water droplets and drainage of the compressor is large.

Below are the parts I replaced.

•Blower motor resistor
•AC Blower Motor w/Fan Compatible
Struts
•Blend Door Actuator x2 Driver's seat temperature, mode switching
•Cabin Air Temperature Sensor
•radiator thermostat
• air conditioner filter

Please help me!

Sawa
no wind
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,241
Reaction score
39,329
Location
Stockton, Ca.
Thank you for reply!
I haven't replaced the actuator that moves the recirc door yet, so I'll try it.
that's not really the best way to resolve your issue, I mean you can throw money at it all day and it may not still work properly until you find the root cause of the problem, you need a technical tool to find the problem the hvac system is technical, it will give a code or present the issue in the data on the tool. have a shop check it or spend the money for a tool since you seem eager to spend
it's your money................
 
OP
OP
Sawa

Sawa

TYF Newbie
Joined
Feb 10, 2022
Posts
19
Reaction score
4
that's not really the best way to resolve your issue, I mean you can throw money at it all day and it may not still work properly until you find the root cause of the problem, you need a technical tool to find the problem the hvac system is technical, it will give a code or present the issue in the data on the tool. have a shop check it or spend the money for a tool since you seem eager to spend
it's your money................
Thank you for reply! "I go to a shop with tech2 and have it diagnosed."
 

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