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My heater will not go to the defroster and the rear heater

Customer Question
is always cold...
My heater will not go to the defroster and the rear heater is always cold
Submitted: 1 year ago.Category: Chevy
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Answered in 1 hour by:
12/31/2015
Chevy Mechanic: John Bryant,
 replied 1 year ago
John Bryant
Category: Chevy
Satisfied Customers: 21
Experience: Owner & class A mechanic at Excel Tech Mobile Repair Corp.
Verified

Hi Matthew, my name is***** for posting your question to Just Answer. I am an ASE Certified Auto Technician with 45 years of real world experience in dealerships and the aftermarket. I was the owner of a facility for 20 of those years. I am confident we can resolve your problem together. Please remember I don't know your skill level. I can't see, smell, hear, or touch the vehicle. It may take a few back and forth replies to get to a satisfactory resolution. I will also make every effort to give all of the information you may need with the expectation you will give me a positive rating. Please be aware that I am usually working with a few people at a time so it may take a few minutes to respond.

Does this Tahoe have manual heater controls?

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Customer reply replied 1 year ago
as well as auto climate
Customer reply replied 1 year ago
Everything worked fine until I had the ac compressor replaced when the bearings went out
Chevy Mechanic: John Bryant,
 replied 1 year ago

So it is climate controlled?

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Chevy Mechanic: John Bryant,
 replied 1 year ago

Do the controls light up when the ignition is on?

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Customer reply replied 1 year ago
they do
Chevy Mechanic: John Bryant,
 replied 1 year ago

If this Tahoe has automatic climate control there will be codes in the "Body Control module" BCM. Do you have access to a scanner that can access the BCM? If yes pull the codes and get back to me I will walk you through a fix. God bless you in the New Year!

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