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Air conditioner too weak?

Controller23
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Controller23 Enthusiast

Controller23

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Posted

Setting of Lo, blower all the way up, seems to take forever to cool off the truck. Even after airing it out. I’m only in Wisconsin too, what about people in truly warm states?

 

My Tacoma would get so cold you could see your breath.

 

 

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2016 Sierra Owner
2016 Sierra Owner

You have to share the A/C with the people in the back seat now.

mafd2
mafd2

It was 100° out this afternoon with 110° heat index. Interior was 125°. Interior cooled down fairly quickly and I was getting 38°-40° out the vents which is colder than my '16 Sierra which ran 42°-44°

mafd2
mafd2

The high fan speed helps move air around better but the air is not as cold with the blower on high as the air is rushing through the evaporator too fast. The lower the fan speed the colder the air wil

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2016 Sierra Owner Senior Enthusiast

2016 Sierra Owner

Posted
Posted
20 minutes ago, Controller23 said:

 

Setting of Lo, blower all the way up, seems to take forever to cool off the truck. Even after airing it out. I’m only in Wisconsin too, what about people in truly warm states?

 

My Tacoma would get so cold you could see your breath.

 

 

Sent from my iPhone using Tapatalk

 

You have to share the A/C with the people in the back seat now. :D

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amxguy1970 Senior Enthusiast

amxguy1970

Posted
Posted (edited)

^ He isn't wrong. Since trucks don't have a separate rear system like the SUV's it takes away some of the power and efficiency from the front vents to power the inefficient rear vents. That is why all the complaints on not having rear vents and people being "hot" back there was comical with the K2's. The air coming out the back is warmer and moving much slower than what is shot out of the front vents. I have no doubt unless they made some significant changes to the system that the K2's are better at cooling the cab and rear passengers than the T1's. Every truck I have been in the rear vents were trickling out air that made my knee feel good, that was it. Being in Texas my truck cools off well and the rear passengers are fine, tons of cold air is coming out of the four front vents.

 

Is there a way to close the rear vents?


Tyler

Edited by amxguy1970
Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

No problems with mine. We get mid to upper 90s with a lot of humidity 80-90% all summer. You have to remember you came from a small truck to a full size and it takes some time to get the heat out of the seats and interior.

mafd2 Senior Enthusiast

mafd2

Posted
Posted

I'd have it checked if I were you. I'm in hot humid La. and my A/C is cold. I have an A/C thermometer clipped in the vent and it gets to 38°.

Controller23 Enthusiast

Controller23

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I might go have it checked. It certainly shouldn’t take 20 minutes to get down to 70 when it’s 85 out.


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Saleenpowr Enthusiast

Saleenpowr

Posted
Posted

I've noticed that when the AC temp is at "low", it's really only cool and not ice cold like my previous GMC trucks.  I have to have it on "re-circulating" for the air coming out to be nice and cold. 

jlong1984 Enthusiast

jlong1984

Posted
Posted

I'm in NC where it gets hot and humid. I have no complaints about the A/C in my 19. I also remote start my truck 99% of the time, so it's already nice and cool by the time I hop in. 

DeePa Enthusiast

DeePa

Posted
Posted (edited)

Is there still the option to adjust max blower speed as there was in the k2 trucks?

 

Edited by DeePa
BlackLS Enthusiast

BlackLS

Posted
Posted

My 2015 Yukon cooled much faster than my Trail Boss. I never had to turn the fan speed up past half way even on the hottest days here in Florida. I regularly turn the fan speed to the fastest setting in my Trail Boss.

 

The Yukon has a separate evaporator and controls for the rear seats and the Silverado does not.

Booger T Enthusiast

Booger T

Posted
Posted
3 hours ago, amxguy1970 said:

I have no doubt unless they made some significant changes to the system that the K2's are better at cooling the cab and rear passengers than the T1's

Not so.  The amount of air that comes out of both my front vents and the ones in the rear is very adequate and cold. Much improved over my 15

Blanz Enthusiast

Blanz

Posted
Posted
4 hours ago, Controller23 said:

 

Setting of Lo, blower all the way up, seems to take forever to cool off the truck. Even after airing it out. I’m only in Wisconsin too, what about people in truly warm states?

 

My Tacoma would get so cold you could see your breath.

 

 

Sent from my iPhone using Tapatalk

 

Mine is currently in the shop with an Evaporator leak that has rendered the system ineffective. And yes, the evaporator requires the dash to be removed! I have 2,300 miles and I'm already pissed off that I went with the Silverado. 

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Ion Enthusiast

Ion

Posted
Posted

It's 92 here in Ohio today and I'm ice cold.  Must be a leak in your system, op.

mafd2 Senior Enthusiast

mafd2

Posted
Posted
29 minutes ago, BlackLS said:

My 2015 Yukon cooled much faster than my Trail Boss. I never had to turn the fan speed up past half way even on the hottest days here in Florida. I regularly turn the fan speed to the fastest setting in my Trail Boss.

 

The Yukon has a separate evaporator and controls for the rear seats and the Silverado does not.

The high fan speed helps move air around better but the air is not as cold with the blower on high as the air is rushing through the evaporator too fast. The lower the fan speed the colder the air will be out of the vents. Don't turn the recirculate on if your truck has been sitting in the hot sun all day because on recirculate it's sucking the 120° interior temp through the system taking it that much longer to cool down. With recirculate off the system is sucking the outside air instead of the hot cabin air. Once the interior cools down, then turn the recirculate on. It'll stay cold and run more efficient because the cabin air is cool and is recirculating.

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