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Ask Dave Nova Your Own Question
Dave Nova
Dave Nova, Cadillac Technician
Category: Cadillac
Satisfied Customers: 1522
Experience:  ASE Master Certification. GM World Class Certification
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I got a serious over heating with Cadillac DTS 2008 it has.

Customer Question

Hi I got a serious over heating with Cadillac DTS 2008 it has. Air in my cooling system and we tried many things but no result
JA: Have you checked the coolant? Have you checked for a leak in the cooling system?
Customer: Yes apparently no leakage but we have not add coolant because it throws everything out through the water reservoir when hot
JA: Are you fixing your DTS yourself? What have you tried so far?
Customer: Actually I took it to a garage
JA: Anything else you want the mechanic to know before I connect you?
Customer: I think that is all but what surprises me is that sometimes the temperature gauge shows normal operating temperature usual have the gauge but the reservoir still boils with bubbles
Submitted: 3 months ago.
Category: Cadillac
Expert:  john -aka eauto replied 3 months ago.

with the tank cap off is steam pushing out? are the fans working? what have you tried