2000 Pontiac Grand Prix GT. Replaced coolant temperature sensor and now temp gauge is reading steady at above 260. How do I reset this?

Asked by Mar 01, 2014 at 06:38 PM about the 2000 Pontiac Grand Prix GT

Question type: Maintenance & Repair

1 Answer

75,395

Sounds like the new sensor is defective or the wiring going to it is damaged and touching something metal. If a bare spot on the wiring is touching something metal this can force the gauge to hot. Unplug the sensor and start the engine (ignore the service engine soon light). Does the gauge now read cold (160°)? If you didn't get a Delco sensor it may not work correctly. At NAPA, where I work, we have trouble with GMs and aftermarket coolant temperature sensors. HTH. -Jim

1 of 1 people found this helpful.

Your Answer

Pontiac Grand Prix Experts

  • #1
    Js08016
    Reputation
    4,580
  • #2
    Tom Demyan
    Reputation
    3,170
  • #3
    munron
    Reputation
    2,590
View All

Related Models For Sale

Used Chevrolet Impala
499 Great Deals out of 32,501 listings starting at $1,000
Used Pontiac Bonneville
3 Great Deals out of 409 listings starting at $1,995
Used Chevrolet Monte Carlo
8 Great Deals out of 1,176 listings starting at $1,125
Used Pontiac Grand Am
955 listings
Used Chevrolet Camaro
415 Great Deals out of 31,695 listings starting at $3,495
Used Ford Mustang
354 Great Deals out of 42,608 listings starting at $1,488
Used Chevrolet Malibu
1,041 Great Deals out of 54,483 listings starting at $1,250
Used Pontiac Firebird
11 Great Deals out of 685 listings starting at $2,850
Used Jeep Grand Cherokee
919 Great Deals out of 71,711 listings starting at $900
Used Nissan Maxima
341 Great Deals out of 20,858 listings starting at $1,175

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.