where is the dash gauge temperature sending unit or sensor

Asked by May 13, 2017 at 07:28 AM about the 2000 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

dash temp gauge is bouncing around from normal too hot..... as always ran at middle 210 now goes too 3/4 hot and then will bounce back to normal.... replaced t-stat and water pump with factory parts along with new coolant... new rad cap and belt...... rad is less then 2 years old due to rock..... wanting too know how the das gauge unit gets its information.....

3 Answers


The temperature sending unit gets its info from the coolant temperature. Then the signal goes to the computer so it can adjust the fuel going into the engine. So by chance, did you purge the cooling system after you filled it up? If you did not do this, then there are air pockets in the cooling system causing hot spots, and needs to be purged.

1 of 1 people found this helpful.

Yes that was performed......... yet I knew of the ETC sensor so are you saying that ................ this also supplies the reading for the dash temp gauge????????????????? If so I will replace it. Even though my dash temp gauge is now showing warmer then I am use too............. the engine does not smell hot and no warning light of overheating...... just that it use too run (3 years) right at the middle of the gauge 210 and never climbed higher.... yet now it runs at 3/4 of hot. I just figured that the ( temp gauge sensor) was acting up...... it has not Overheated nor set a light to that fact...... runs wonderful just I worry about the temp............Ouch


It is possible the gauge for some reason is off. Find a garage to accurately read the coolant temperature to see where it is running at to verify.

Your Answer


Looking for a Used Yukon in your area?

CarGurus has 1,113 nationwide Yukon listings starting at $6,950.

Postal Code:

GMC Yukon Experts

  • #1
  • #2
    David Boccabello
  • #3
View All

Related Models For Sale

Used Chevrolet Tahoe
5 Great Deals out of 908 listings starting at $8,500
Used Cadillac Escalade
7 Great Deals out of 499 listings starting at $4,980
Used GMC Yukon XL
3 Great Deals out of 771 listings starting at $11,888
Used Chevrolet Suburban
8 Great Deals out of 573 listings starting at $6,990
Used GMC Sierra 1500
178 Great Deals out of 12,034 listings starting at $1,775
Used Ford Expedition
14 Great Deals out of 341 listings starting at $5,490
Used Chevrolet Silverado 1500
160 Great Deals out of 12,130 listings starting at $1,895
Used Ford F-150
522 Great Deals out of 10,138 listings starting at $3,490
Used Ford Explorer
35 Great Deals out of 1,623 listings starting at $4,500
Used Jeep Grand Cherokee
149 Great Deals out of 3,998 listings starting at $2,400
Used Dodge Durango
96 Great Deals out of 1,004 listings starting at $3,900
Used Toyota 4Runner
5 Great Deals out of 529 listings starting at $4,995
Used Lincoln Navigator
85 listings starting at $7,995

Used Cars For Sale

2018 GMC Yukon SLT 4WD For Sale
227 listings starting at $66,860
2017 GMC Yukon SLT 4WD For Sale
25 listings starting at $56,995
2016 GMC Yukon SLT 4WD For Sale
8 listings starting at $53,888
2015 GMC Yukon SLT 4WD For Sale
14 listings starting at $40,000
2014 GMC Yukon SLT 4WD For Sale
6 listings starting at $34,174

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.