GMC Sierra Air Conditioner

Browse GMC Sierra Air Conditioner questions and answers. Choose a question that matches your symptoms.

64 discussions

What Does The Vacuum Belt Do And Operate?

2019 GMC SIERRA
I Have Recently Seen A Small Broken Belt Hanging Below My Truck That Is Either The Belt For The Vacuum Pump Or A/c Condenser. I Am Unsure...
1 ANSWER
9 IMAGES
Asked by bef2p1

A/C Not Working

2019 GMC SIERRA
Hello There, We Bought This Truck This Summer With A Rebuilt Title. Went Over The Damage Report With The Mechanic That Rebuilt It And He Was...
7 ANSWERS
8 IMAGES
Asked by Karen Boals

A/C Blowing Hot Air

2018 GMC SIERRA
Evap Drips Condensation, Compressor Engages, 1234 Refrigerant Showing Charged, Engine Fan Blows, All Fuses Good. Next Steps?
3 ANSWERS
3 IMAGES
Asked by Texass

A/C Relay Location Needed For Reinstallation

2015 GMC SIERRA
Truck Listed Above Is An All Terrain. Pulled Out A/c Relay And Didn't Realize There Were Two Ways It Could Go Until I Saw The Diagram On...
1 ANSWER
1 IMAGE
Asked by BadFrankie

A/C Not Working?

2013 GMC SIERRA
When A/c Was Working It Would Run About And Hour Then Freeze Up Then All Of A Sudden A/c Clutch Wont Engage. Check Fuses And Relay; They...
23 ANSWERS
12 IMAGES
Asked by Jon Rice 68

A/C Compressor Kicks On And Off About Every Six...

2011 GMC SIERRA
Two Gm Dealerships Have Gone Through This Truck With A Fine Tooth Comb And Found Nothing.
1 ANSWER
1 IMAGE
Asked by sassy04255@aol.com

Compressor Clutch Will Not Engage

2011 GMC SIERRA
My A/c Compressor Clutch Wont Engage, But When Power Is Shot To It, It Engages. Wont Stay On By Itself So It Just Blows Hot Air.
1 ANSWER
Asked by levisherrill

No Ground Signal At Pin 85 On Air Conditioning...

2009 GMC SIERRA
The Air Conditioning In This Truck Stopped Working At The End Of Last Summer. When I Switch On The Ac On The Truck It Only Blows Hot Air...
6 ANSWERS
11 IMAGES
Asked by 2500HD-Bman

2008 GMC Sierra A/C Question

2008 GMC SIERRA
Ok, The Blower Resistor Went Out About A Month Ago So I Ordered A New One. In The Meantime My Wife Continued To Drive The Truck. She Would...
1 ANSWER
Asked by jayray3

Ac Does Not Blow The Correct Direction

2008 GMC SIERRA
Crank Truck Up And Everything Works Perfect. A Min Or Two Goes By Then In Does Not Blow Out Any Where, But Fan Is Still Running
13 ANSWERS
1 IMAGE
Asked by Kevin Godwin

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