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Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 1808
Experience:  ASE Master Certification. GM World Class Certification
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Buick Lucerne Not Heating When Heater On.

Customer Question

My 2006 Buick Lucerne does not get hot when heater is turned on and sometimes it does get hot but goes off after within a short period of time. Also on my way home earlier I had the heater on which it wasn't working but it did go up to over heat mode so I turned it off and it went back to normal. I stopped and checked no leaks no steam coming from the motor.
Would like to know what is the problem?
Submitted: 1 month ago.
Category: Buick
Expert:  Jerry replied 1 month ago.
Hello and welcome. My name is ***** ***** you for visiting the site.
I am reviewing your question and will reply shortly, thanks.
It sounds like the thermostat may be sticking closed. Has the thermostat been checked or replaced?