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2000 CADILLAC DTS ON HEAT ON ON DRIVER


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DRG
New User

Nov 28, 2018, 9:23 AM

Post #1 of 2 (316 views)
2000 CADILLAC DTS ON HEAT ON ON DRIVER Sign In

I REPLACE ACTUATOR BLEND DOOR STILL ON HEAT


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Nov 28, 2018, 5:11 PM

Post #2 of 2 (302 views)
Re: 2000 CADILLAC DTS ON HEAT ON ON DRIVER Sign In

 
With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are both hot, the heat in that vehicle is controlled by a blend door that regulates heated air flow. it is operated by an electric motor/actuator. The problem can be that the actuator is stripped or inoperative or the door itself could be damaged. This is what needs to be determined by examining the actuator and see if it is responding to heat change commands or not.



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