Coolant Temp Sensor - Cadillac XT5 Forum
 
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post #1 of 5 (permalink) Old 04-13-2020, 09:02 PM Thread Starter
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Coolant Temp Sensor

I notice the cooling fans were running wide open on the wifes XT5. Also getting Attention required: steering assist reduced when stated. The coolant temp gauge also doesn't go up. Pulled a P0128 code. I think we have a bad coolant temp sensor. Does anyone know where it's at on this engine? Thanks!!!
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post #2 of 5 (permalink) Old 09-19-2021, 03:26 PM
DJD
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I do not know, but I hope someone replies soon because it is nearly impossible to find a solution to this online.
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post #3 of 5 (permalink) Old 09-19-2021, 09:53 PM
DJD
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Quote:
Originally Posted by Chris Ingebritson View Post
I notice the cooling fans were running wide open on the wifes XT5. Also getting Attention required: steering assist reduced when stated. The coolant temp gauge also doesn't go up. Pulled a P0128 code. I think we have a bad coolant temp sensor. Does anyone know where it's at on this engine? Thanks!!!
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File Type: jpg ECT Sensor (Top Engine).jpg (144.1 KB, 18 views)
File Type: jpg ECT Sensor Replacement.jpg (142.2 KB, 20 views)
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post #4 of 5 (permalink) Old 10-15-2021, 09:06 PM
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did it work? I just had a mechanic tell me $1900 for a new thermostat....
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post #5 of 5 (permalink) Old 10-29-2021, 07:59 PM
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Quote:
Originally Posted by Chris Ingebritson View Post
I notice the cooling fans were running wide open on the wifes XT5. Also getting Attention required: steering assist reduced when stated. The coolant temp gauge also doesn't go up. Pulled a P0128 code. I think we have a bad coolant temp sensor. Does anyone know where it's at on this engine? Thanks!!!

My 2017 XT5 is experiencing the same issues and code. What was the resolution to the problem? Did you change the temp sensor? Change thermostat? Was it another part at fault? Car is out of warranty and I’m trying to avoid the dealer. Any additional help is greatly appreciated.
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