Over heating / fan not kicking on

Asked by May 22, 2017 at 01:26 PM about the 2007 Chevrolet Cobalt LS Sedan FWD

Question type: Maintenance & Repair

Hit front end and broke plastic piece by drain cock
off radiator. Replaced radiator, put in green
coolant. Found out I needed dex cool, flushed
radiator, put in dex cool, replaced thermostat.
Friend checked and said fuses and relays are
good. Coolant temp just keeps climbing while not
moving and fan not kicking on.

2 Answers

145

The fan will turn on at around 211-213 degrees. If the temp rises 5-10 degrees above that and the fan is still not turning on then it could be the fan itself or the temp sensor is malfunctioning.

Replaced fan today. It turned on with a.c. on, but only then and wouldn't shut off until we turned the car off. Thinking the sensor is bad. Gonna replace it tomorrow. Hoping that finally solves it. Replaced about everything else at this point.

Your Answer:

Chevrolet Cobalt Experts

  • #1
    munron
    Reputation
    1,350
  • #2
    dandyoun
    Reputation
    1,060
  • #3
    MoGo
    Reputation
    1,010
View All

Related Models For Sale

Used Chevrolet Malibu
604 Great Deals out of 50,816 listings starting at $600
Used Honda Civic
486 Great Deals out of 44,345 listings starting at $1,150
Used Ford Focus
463 Great Deals out of 76,684 listings starting at $800
Used Chevrolet Impala
513 Great Deals out of 25,945 listings starting at $995
Used Ford Mustang
310 Great Deals out of 39,695 listings starting at $1,312
Used Toyota Corolla
672 Great Deals out of 63,571 listings starting at $1,499
Used Honda Accord
682 Great Deals out of 101,645 listings starting at $999
Used Honda Civic Coupe
95 Great Deals out of 10,648 listings starting at $977
Used Toyota Camry
858 Great Deals out of 70,625 listings starting at $1,300
Used Dodge Charger
327 Great Deals out of 31,991 listings starting at $1,500
Used Nissan Altima
861 Great Deals out of 61,735 listings starting at $1,000

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.