Rick's Free Auto Repair Advice

Posts Tagged: #04-01-38-008

Air only blows through defrost vents

Air only blows through defrost vents Air only blows through defrost vents, cannot change heater settings, Escalade, Avalanche, Silverado, Suburban, Tahoe, Yukon, TSB, #04-01-38-008 GM has issued a technical service bulletin (TSB) #04-01-38-008 to address problems with the heating system, blower control, and airflow on the following models: 2003-2005 Cadillac Escalade, Escalade ESV, Escalade EXT 2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe 2003-2005 GMC Sierra, Yukon, Yukon XL If you find that you cannot control any of the heater controls, heating, air conditioning, or airflow, or the air only blows through … Read More


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