Question about 2004 Chevrolet Silverado 1500 Crew Cab

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Heater doesn,t blow hot

My heater doesnt blow hot until i get driving but at idle it is cold. i have a 2004 chev 1500 truck.

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  • Anonymous Mar 13, 2014

    95 S-10 TRUCK 2.2 HEATER DONT WORK HEATER GAUDGE WILL GO TO HOT THEN COLD

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Have you checked your coolant? if coolant is low it can cause an air pocket in heater core and it wont pass out until rpm's increase by the extra flow of water pump. if it is full then might wanna try removing heater hoses and back flushing heater core with water might have a little trash in it restricting flow.

Posted on Dec 04, 2008

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