heater problem

Discussion in 'General Chevy & GM Tech Questions' started by golfdad, Feb 19, 2011.

  1. golfdad

    golfdad New Member

    Just had head gasket replaced on 2001 Silverado and now the heater only blows lukewarm air. Could the heater problem be related to the gasket replacement or is it just a coincidence?
  2. stephan

    stephan Rockstar 4 Years 5000 Posts

    I think what you have is an air bubble in the heater core that wont pass. You could disconnect your hoses at the engine & bleed the bubble out, or park your vehicle with the radiator cap uphill, (cap at the highest point) take the cap off & run the engine & refill the rad as the air bleeds out.
    ** It's most likely not just coincidence. When they replace head gaskets they have to drain the coolant, & this allows air ingress that needs to be replaced with coolant after the repair.
  3. Bigbomber

    Bigbomber Rockstar 4 Years 5000 Posts

    x2 on what stephan said about your problem being an air bubble,welcome!
  4. Vincennes02261897

    Vincennes02261897 Rockstar 4 Years 1000 Posts

    I think they may have gotten you squared away. But I'll certainly welcome you to the forum! Hope you get your heater issue worked out.
  5. golfdad

    golfdad New Member

    ok. thanks for your thoughts. heater seemed a bit better on the weekend. its only been less than one week since gasket was done plus it has been cold the last few days. glad to hear it is probably not a heater core issue. will see if it works itself out. otherwise will try your suggestion.
  6. mfleetwood

    mfleetwood Epic Member 5+ Years ROTM Winner 5000 Posts

  7. silveradotrailblazer

    silveradotrailblazer Epic Member 5+ Years ROTM Winner 5000 Posts

    Welcome to the club.
  8. canislupis69

    canislupis69 Epic Member 5+ Years ROTM Winner 5000 Posts

    Welcome to the club!
  9. retired2001

    retired2001 Epic Member 5+ Years 5000 Posts

    Welcome to the G M T C !

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