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2001 Chevrolet Silverado 1500 Pickup Support Question

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Question posted by the3brocks on November 20th, 2015

Defroster Not Getting Hot

defroster not getting hot

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Answer #1: Posted by TechSupport101 on November 20th, 2015 11:42 PM

This answer was accepted by the poster of the original question.

TechSupport101

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Hi. The best answer here https://answers.yahoo.com/question/index?qid=20120715073315AA1i6Vt was for supplied for a Ford question but I reckon it should apply to your Chevy's just as it did for the Ford.

www.satechhelp.co.za

Answer #2: Posted by kader001 on November 21st, 2015 12:43 AM

kader001

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November 13th, 2015

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Hello,

The vent system is primarily switched by vacuum. Maybe one of the lines has become disconnected or the defroster door/cylinder is stuck.

Does your car switch between FLOOR and VENT and MIX properly? If not maybe your primary vacuum line going to the HVAC control isnt hooked up. There should be a line for that in the engine compartment that goes from the main vacuum tree into the firewall.

The Defrost setting works in conjunction with the A/C compressor. The A/C system will dehumidify the air prior to send it thru the Heater core and up to the windsheild.

Your defroster would work better if your A/C was also working.

Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful. Please feel free to submit further info for your question, if a solution was not provided. I appreciate the opportunity to serve you!

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