2000 Chevy Silverado No heat through heater

Tiny
CARTER96
  • MEMBER
  • 2000 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 171,500 MILES
Recently my trucks heater stopped working. It just blows cool air. It came back on for one day and has been out since. Would this be a thermostat problem or a heater core problem? If heater core how hard is it to change?
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Saturday, January 19th, 2008 AT 7:37 PM

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Tiny
RASMATAZ
  • EXPERT
Good place to start is to check the coolant level and make sure its using the correct type of coolant and properly mixed for protection. Won't hurt inspect for a clogged heater hose/core-feel the hoses should be the same temperature if not something is wrong.

Could be also air mix or blend door not opening due to a malfunctioning actuator or vacuum or hose problem
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Saturday, January 19th, 2008 AT 8:26 PM

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