The ECT (Engine Coolant Temperature) sensor is on the rear of the right cylinder head on the right side - just about in front of where your gas pedal foot would lie.
The fans are controlled by the ECT whenever no A/C function is set - they go to SLOW at 224 degrees and FAST at 236 degrees. If an A/C function is set, fans run in SLOW all the time.
There are two fan fuses and 3 relays in the underhood fuse box.
The matter with my fans are working with low speed and temp rise to 3/4 most of the time
,I have to turn A/C to get low temp close to 1/2
Thanks
Best regards
Abdullah
I'm asking why cooling fans work slow and the temp. Rise to 3/4 and i have to turn A/C on to get high speed A/C fan and to get the temp. To 1/2
And if the cooling fans realy are ok is there any sensor for fans. Thanks for reply
Abdullah, if you're still having concerns involving your fan, I'm happy to check my resources on your behalf. Please send me an email at Katie_Lucille@gmexpert.com with the last eight of your VIN if you'd like me to investigate for you!
Abdullah, if you're still having concerns involving your fan, I'm happy to check my resources on your behalf. Please send me an email at Katie_Lucille@gmepxert.com with the last eight of your VIN if you'd like me to investigate for you!
Sorry about that, Abdullah! My email address is Katie_Lucille@gmexpert.com; my original post had a typo. I made note of your VIN if you'd like to delete that sensitive information from your post above.
When I checked my resources for you, I saw there were no open recalls on your DTS, and I didn't see any information that indicates possible causes for your fan concerns. Would you consider going to the dealership to have a technician look at your vehicle firsthand? (If you're looking for DIY-related advice from forum members, I understand; I just wanted to double check.)
Best,
Katie
Cadillac Customer Service
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