Question about 2006 Cadillac CTS
If I understand your problem the car is overheating with the A/C turned off? u may have a bad thermostat or a blockage in radiator. open the radiator cap when car is cold and start the engine. look into the radiator and see if fluid is flowing if its not that's good it means when engine is cold the thermostat is closed. after the car reaches normal operating temp the stat should open and the fluid flow through the radiator. if this is not the case then replace thermostat. if it passes this test then check the top radiator hose to see if its hot then check the bottom hose it should be about the same temp as the top. if it is cold or just warm then u most likely have a blockage in the radiator. if so u can replace it or have it redone at radiator shop. if radiator is ok then look at heater core. when the engine is warm u should have heat. u can use the hose test here as well. the two smaller hoses that go into firewall to heater should be hot when using the heat if not then there is a blockage in heater core.. hope this helps
Posted on Apr 16, 2014
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Posted on Jan 02, 2017
You will have to call a parts store in your area and ask them. Here in Texas you have to replace the whole unit. Thats if you dont want to goto a junk yard.
Posted on Mar 07, 2011
SOURCE: how do i remove rear
The vehicle needs to be lifted on jack stands to replace rotors, the caliper needs to be removed, the wheel needs to be out.For complete step by step procedure , click the link below:--- http://technoanswers.blogspot.com/2011/09/how-to-remove-rear-brake-rotors-on-2006.html --------- This will help.Thanks.Helpmech.
Posted on Sep 24, 2011
Hi,It sounds as though the radiator is blocked.the heater might be opening letting in hot air which will over ride the cool air.
Posted on May 24, 2013
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