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[gmt900] Does It Sound Like My Auto Ac Needs Help?

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WhiteRabbit Enthusiast

WhiteRabbit

Posted
Posted

Okay let me run this scenario by you and you tell me if this is normal..

 

2009 Silverado.. Auto AC..

 

Auto Turned On..

Air Temp set to 70

AC (snowflake) button OFF

Outside Air ON.

 

If I flip to recirculate to Interior Air only the AC Compressor kicks in and the air starts getting COLD as ICE yet the AC Indicator still shows OFF.

 

Lets say you just want the fan on but don't need the AC kicking in.. You don't want any heat added either. Just the outside air to flow in through the vents..

 

Auto turned OFF

Air Temp set to 60 (low as it will go)

AC (snowflake) button OFF

Outside AIR On.

 

Okay so a big garbage truck pulls out in front of you and it stinks so you switch to recirculate to keep the outside air OUT!. the AC Compressor Kicks on and brings the air down to 60 Degrees yet the AC Button is STILL OFF!.

 

WTF!

 

 

 

And I might add the intelligence that the AC employs to regulate the inside temp SUCKS A$$!. 70 degrees feels like 80 and 75 feels like 90.

orlan85 Enthusiast

orlan85

Posted
Posted
Okay let me run this scenario by you and you tell me if this is normal..

 

2009 Silverado.. Auto AC..

 

Auto Turned On..

Air Temp set to 70

AC (snowflake) button OFF

Outside Air ON.

 

If I flip to recirculate to Interior Air only the AC Compressor kicks in and the air starts getting COLD as ICE yet the AC Indicator still shows OFF.

 

Lets say you just want the fan on but don't need the AC kicking in.. You don't want any heat added either. Just the outside air to flow in through the vents..

 

Auto turned OFF

Air Temp set to 60 (low as it will go)

AC (snowflake) button OFF

Outside AIR On.

 

Okay so a big garbage truck pulls out in front of you and it stinks so you switch to recirculate to keep the outside air OUT!. the AC Compressor Kicks on and brings the air down to 60 Degrees yet the AC Button is STILL OFF!.

 

WTF!

 

 

 

And I might add the intelligence that the AC employs to regulate the inside temp SUCKS A$$!. 70 degrees feels like 80 and 75 feels like 90.

 

If I am not mistaken I believe that the compressor is suppoose to turn on when you set it to recirculate. I have a Maxima and it would show that the AC was turn on when the heat was on and recirculating. My brother ( the mechanic of the family) explained that even though it is the heat and not the AC the compressor is suppose to turn on when recirculating. I dont remember exactly why it does that maybe someone else can elaborate.

 

The intelligence of the AC/Heater does suck. I think the unit tries to get to the interior temp that you picked really quick. For example, if you turn on the heater and set it to 75 but the sensor reads that the interior of the truck if 40, it will put out 90 degree heat to try and bring it up to 75 as fast as possible. Then when it hits 75 it will regulate itself. the only problem is that when you get into a cold truck in which the interior temp is 20 degrees and you put the temp for 75 it can blast 90 degree heat forever because it is trying to bring the temp up to 75. The problem arises because after 10 minutes of having the 90 degree heat blowing at your body and face while being completely bundled up you start to overheat while the inside temp of the truck might still be in the 50's or 60's. So you overheat and put the fan speed down and adjust the temp because you feel like it is already 75 in the truck when it is really only 50. Kind of like when its 20 degrees outside and you first go out and you say how cold it is. Then you start playing football and you start to heat up and layers of clothes start to come off. Then before you know it your in a t-shirt playing football and you think that it is now 55 degrees outside when in reality its only 30 outside.

 

I like my maxima for this reason. If you set the temp setting to 75 it might blow 78-80 until the temp reaches 75. It will only blow 90 if you set it to 90. so it doesnt bother me to set it to 90 for the first couple of minutes and then turn it down to 70 because once i get comfortable it will blow 70 degree heat, not 90.

WhiteRabbit Enthusiast

WhiteRabbit

Posted
  • Author
Posted

Thanks for the response.. I just didn't think that made a lot of sense.. If the Compressor comes on in the Recirculate mode then why the need to have a separate ac button? At least make the AC button light up..

music Senior Enthusiast

music

Posted
Posted

Normal operation. I agree, however, that I'd prefer that I get to decide myself. It's been idiot-proofed against those folks who turn on recirc and then complain because their windows fog up. I also agree that the A/C light should come on when the A/C is engaged.

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