Cold passenger warm driver issue
Thread Starter
Instructor
Joined: Nov 2024
Posts: 120
Likes: 4
Cold passenger warm driver issue
I evacuated my system and recharged it but I am.having an issue with the passenger side cold and center/driver side warm. If I swapped it to defrost it is also warm.
if i turn the temp to heat it does get hotter.
No codes on dic
I checked driver side blend door acuator and it is working.
any ideas?
if i turn the temp to heat it does get hotter.
No codes on dic
I checked driver side blend door acuator and it is working.
any ideas?
Last edited by Woopigsooie00; Jul 16, 2025 at 08:17 PM.
Tech Contributor
Joined: Jan 2007
Posts: 19,394
Likes: 1,137
From: Dyer, IN
I evacuated my system and recharged it but I am.having an issue with the passenger side cold and center/driver side warm. If I swapped it to defrost it is also warm.
if i turn the temp to heat it does get hotter.
I checked driver side blend door acuator and it is working.
any ideas?
if i turn the temp to heat it does get hotter.
I checked driver side blend door acuator and it is working.
any ideas?
Thread Starter
Instructor
Joined: Nov 2024
Posts: 120
Likes: 4
Tech Contributor
Joined: Jan 2007
Posts: 19,394
Likes: 1,137
From: Dyer, IN
Why was the oil added? Did you replace something in the system?
I'm utterly confused why you would over-service the system. You started with a previously empty/evacuated system.....and you are servicing to a target pressure instead of servicing to spec to establish a baseline.
I assume that.......
-You otherwise had a working system that was not damaged or missing components
-You checked/replaced the orifice tube
-Your system was under vacuum for a period of time with a pump, you closed the valves on the servcing equipment, turned off the pump, and the vacuum held
-You used 12 oz cans
-You purged the hoses on the equipment
-You compensated 1 oz loss per can, 2oz loss for servicing hoses
-You used a scale
Thread Starter
Instructor
Joined: Nov 2024
Posts: 120
Likes: 4
What does the sticker on the inner passenger fender state your refrigerant capacity is?
Why was the oil added? Did you replace something in the system?
I'm utterly confused why you would over-service the system. You started with a previously empty/evacuated system.....and you are servicing to a target pressure instead of servicing to spec to establish a baseline.
I assume that.......
-You otherwise had a working system that was not damaged or missing components
-You checked/replaced the orifice tube
-Your system was under vacuum for a period of time with a pump, you closed the valves on the servcing equipment, turned off the pump, and the vacuum held
-You used 12 oz cans
-You purged the hoses on the equipment
-You compensated 1 oz loss per can, 2oz loss for servicing hoses
-You used a scale
Why was the oil added? Did you replace something in the system?
I'm utterly confused why you would over-service the system. You started with a previously empty/evacuated system.....and you are servicing to a target pressure instead of servicing to spec to establish a baseline.
I assume that.......
-You otherwise had a working system that was not damaged or missing components
-You checked/replaced the orifice tube
-Your system was under vacuum for a period of time with a pump, you closed the valves on the servcing equipment, turned off the pump, and the vacuum held
-You used 12 oz cans
-You purged the hoses on the equipment
-You compensated 1 oz loss per can, 2oz loss for servicing hoses
-You used a scale
So lets just assume refrigerant level and the driverside blend door acuator are not the issue. What is the next ?
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Tech Contributor
Joined: Jan 2007
Posts: 19,394
Likes: 1,137
From: Dyer, IN
it is not longer over serviced. After I serviced it to the correct pressure and the driver side blend door accuator was not the issue. I added more refrigerant to see if it would correct the issue. It did not.
So lets just assume refrigerant level and the driverside blend door acuator are not the issue. What is the next ?
So lets just assume refrigerant level and the driverside blend door acuator are not the issue. What is the next ?
Thread Starter
Instructor
Joined: Nov 2024
Posts: 120
Likes: 4
pretty sure i did. What more exact details do you need? I just know its not low on refrigerant. I am just trying to move past the thought that it is low on refrigerant to find the real cause. Because thinking tbat is just wasting time
Racer
Joined: Mar 2015
Posts: 412
Likes: 284
From: Indianapolis
Just to confirm, if you hook your gauges to the system and turn the A/C on, what are the pressures at 2k rpm? Just trying to verify the system is operating correctly.
What is the temp coming out of the drivers side? Hot? Warm? Luke-warm?
How about the center vent?
Have you inspected the evaporator to ensure there's no blockage across part of it?
And how did you verify the blend door was working?
What is the temp coming out of the drivers side? Hot? Warm? Luke-warm?
How about the center vent?
Have you inspected the evaporator to ensure there's no blockage across part of it?
And how did you verify the blend door was working?
Pro
Joined: Dec 2014
Posts: 682
Likes: 276
From: Cincinnati Ohio
Do you have a cold suction line? If not, and you have a correct charge, and your orifice tube is seated without a torn oring, then your compressor is not running at full stroke.
The compressor has a control valve in the rear casting. It determines how much the compressor needs to pump based on the suction pressure. There are failure modes that can mess up the valves ability to control correctly.
Overcharge will elevate the low side pressure too but 55psi seems high even with overcharge.