• Tiny
  • arby
  • 2004 Chevrolet Silverado
  • V8
  • 4WD
  • automatic
  • 120,000 miles

04 silverado, no heat on drivers side, heat on passengers side

Tuesday, January 11th, 2011 AT 10:08 PM

1 Answer

  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

If both heater hoses comming from the heater core are hot, the blend door is NOT moving, if the inlet hose is hot but outlet is cold, the heater core needs flushing, or replacement. If both hoses are cold, check antifreeze level and thermostat, also rarley but known to happen is the impeller blades on the water pump disolve over time and may not be pumping enough.

Was this
Monday, February 21st, 2011 AT 7:58 PM

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