GMC Sierra Climate Control

I Checked The Pressure Of My Refrigerant And The Gauge Indicated Too High. Will This Cause My Ac To Not Cool Sufficiently?

The Hvac Fan Speed Control Switch Works Only On High. It Is A 5 Speed Fan And A Rotary Type. What Could Be The Problem?

My 2002 Sierra Heating Dampers Do Not Operate When The Outside Temperature Gets Down To ~10 Deg.f . Where Are The Ac/heating Dampers...

When I Switch The Vent Control To Blow Out Of The Dashboard Vents And Turn The Blower Speed To 3 Or Above, It Creates A Loud "blowing" Noise...

Do I Change The Thermostat?

Heater Problem 2002 Gmc Sierra V8 Two Wheel Drive Automatic The Blower Fan Will Not Turn Until The Fan Control Knob Is On The Number 4...

Heater Problem 2002 Gmc Sierra V8 Four Wheel Drive Automatic How?

Who Makes And Sells A Tool To Release The Dorman Connectors Which Hold The Heater Hoses To The Heater Coil? I Tried Several Auto Parts...

When You Turn It On The Only Air That Comes Out Is From The Defrost Vents And The Only Speed Of Air That Works Is 5 But It's Barely...

Truck Listed Above Is An 1500 Hd. About 8 Weeks Ago I Started Having Trouble With My Truck Starting. The Starter Wouldn't Crank...