GMC HEATER

I Recently Put A Heater Resister Switch In My Gmc Sierra 99. And I Had Speeds 1 Through 4 And The Day After It Wouldn't Blow Anything Now...

Where Is The Heater Control Valve Located.

Selector Switch For Changing From Floor To Dash To Defrost Doesn't Work. Is There Any Common Reason For This Condition?

Im Writing To Ask How You Would Remove The Pipe Sleeve Cover That The Hose Connects To For The Heater Coil In Out. The Extension That Slides...

The First Two Positions On My Blower Switsh Don't Work. How Do I Replace It And Can I Purchase It Online? Thank You.

How To Change The Heater Hose

Blower Switch Will Not Operate, Level Of Antifreeze Restored, Resistor Replaced, Fan Motor Tested And Runs When 12volts Applied. Fuses...

Blowing Cold Air.

Bought Truck Used. While Pulling Hard With Trailer Uphill, Pedal To Metal As Only Primaries Work On Carburetor, I Blew Heater Core. Upon...

No Display Lights Coming On. Just Blows Cold Air?