Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
Is this cold air occuring with the temp set on hot?
Let me know so we can continue,thanks Pete.
Was the computer on the front dash for heat/ac operation replaced?
The rear is a slave to the front.If the temp reading inside is 170 all of the time and the temp sensors were replaced already this indicates the front ac/heater control unit needs replaced.If this front control is one that has AUTO settings for AUTO temp controls then it will need programmed by a GM dealer or authorized repair center after it is replaced.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.
It does have to be programmed unfortunately to operate.It may not operate at all or properly until it is programmed but you can replace it yourself then have it programmed.Programming usually takes less then 15 minutes to have done.
Let me know if you need anything else and feel free to rate my help here as this is how I receive credit for my time.Your 5 star rating is appreciated