Radiator fans making battery die

Asked by Nov 03, 2015 at 02:53 PM about the 2005 Honda Civic

Question type: Maintenance & Repair

When I turn on the defrost function the
radiator fans turn on. When the radiator
fans are running, they do not turn off long
enough for the alternator to recharge the
battery. Eventually the battery dies. What
can I do to adjust the fan cycle so that the
fans turn off a bit longer?

1 Answer

85,885

Are you saying the fans run long enough after shutting the engine off that the battery dies? Your car could be running too hot or the thermostatic switch might need to be replaced. It is also possible that your battery is just weak or that your alternator is not putting out enough power to keep up with the demand.

Your Answer

Honda Civic Experts

  • #1
    Tom Demyan
    Reputation
    1,150
  • #2
    Takoda Fraser
    Reputation
    1,030
  • #3
    Jonathan Ford
    Reputation
    1,010
View All

Related Models For Sale

Used Honda Accord
1,101 Great Deals out of 71,971 listings starting at $1,100
Used Toyota Corolla
928 Great Deals out of 63,626 listings starting at $1,850
Used Honda Civic Coupe
183 Great Deals out of 12,038 listings starting at $1,000
Used Toyota Camry
1,029 Great Deals out of 85,939 listings starting at $800
Used Honda CR-V
842 Great Deals out of 58,482 listings starting at $995
Used Nissan Altima
1,238 Great Deals out of 77,363 listings starting at $1,695
Used Mazda MAZDA3
341 Great Deals out of 27,315 listings starting at $899
Used Hyundai Elantra
624 Great Deals out of 50,170 listings starting at $1,500
Used Honda Accord Coupe
163 Great Deals out of 6,767 listings starting at $2,000
Used Ford Mustang
569 Great Deals out of 38,809 listings starting at $1,895
Used BMW 3 Series
1,068 Great Deals out of 32,575 listings starting at $1,200
Used Ford Focus
749 Great Deals out of 61,364 listings starting at $900
Used Hyundai Sonata
866 Great Deals out of 56,251 listings starting at $1,500

Used Cars For Sale

2017 Honda Civic For Sale
39 Great Deals out of 14,957 listings starting at $12,991
2016 Honda Civic For Sale
88 Great Deals out of 2,614 listings starting at $10,999
2015 Honda Civic For Sale
200 Great Deals out of 5,032 listings starting at $8,475
2014 Honda Civic For Sale
176 Great Deals out of 4,341 listings starting at $6,400
2013 Honda Civic For Sale
62 Great Deals out of 1,641 listings starting at $6,995

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.