HEATER NOT WORKING

Dear Sirs I Have A 99 Xj8 That Runs Perfect Except For Some Reason No Heat At Idle Or When Stopped At Light. Highway Speeds Have Heat?...

No Heat Inside Car. Changed Thermostat. Car Not Overheating (water Pump Good?) Set Temp At 90 Little Or No Heat From Vent.

Air Blows Ok, But No Heat. A Few Days Ago It Started A Rythmic "click: Pause "clackrepeat, Sound From Under The Dash. Then It Stopped...

When Using The Heater, I Can Be Very Hot On The Driver Side And The Passenger In Very Cold, Took It To The Dealer Many Times In The First...

The Ac Compresor Keep Running In Both Modes Ac And Heater

All Functions Work On The Interior Control Switches, The Fan Blows, And I Can Hear The Vacuum System Engage When I Switch The Air...

Heater Problem 2006 Gmc Envoy 6 Cyl Four Wheel Drive Automatic I'm Not Getting Any Heat Or Ac; Light Air By Feet. Electrical? All...

Fan Works On All Settings, But No Heat When Needed Or A/c Cooling.

I Have Changed Thermostat (2) Coolant Full, Replaced Fan Clutch, Just Keeps One Temperature All The Time, No Idiot Lights On, Never...

I Can Only Get Cold Air Out Of My Vents, Even When I Have The Dial Cranked To Full Heat! It's Not A Problem Right Now But Winters...