2005 Honda Civic EX heat is only hot while driving

Asked by Jan 01, 2015 at 11:32 PM about the 2005 Honda Civic EX Special Edition

Question type: Maintenance & Repair

As soon as I stop at a light, stop sign or at an idle it is freezing cold air.  I have had the
thermostat and water pump replaced but still not fixed.  (My check engine light has also
come on and was told the O2 sensor needs to be replaced- not sure if this is related)

2 Answers


your heater core needs to be flushed or changed

2 people found this helpful.

Have the computer scanned at your local auto parts store and post the trouble codes here. Most stores will do it for free. No, an O2 sensor (oxygen sensor) problem will not effect the heater operation. I suspect that the heater core is restricted. When you accelerate the water pump spins faster and pumps more coolant. This increases the pressure of the flowing coolant and is able to force the coolant through the partially clogged heater core. When you stop no coolant is able to get through the heater core so the heat stops. HTH. -Jim

1 people found this helpful.

Your Answer:

Honda Civic Experts

  • #1
    Tom Demyan
  • #2
    Jonathan Ford
  • #3
    Takoda Fraser
View All

Related Models For Sale

Used Honda Accord
559 Great Deals out of 103,306 listings starting at $1,225
Used Honda Civic Coupe
83 Great Deals out of 10,713 listings starting at $1,300
Used Toyota Corolla
588 Great Deals out of 65,788 listings starting at $1,460
Used Toyota Camry
725 Great Deals out of 72,690 listings starting at $1,250
Used Honda CR-V
595 Great Deals out of 77,006 listings starting at $1,995
Used Nissan Altima
723 Great Deals out of 65,229 listings starting at $1,000
Used Hyundai Elantra
416 Great Deals out of 47,840 listings starting at $1,700
Used Mazda MAZDA3
242 Great Deals out of 24,847 listings starting at $999
Used Ford Mustang
247 Great Deals out of 38,236 listings starting at $1,350
Used Honda Accord Coupe
67 Great Deals out of 3,876 listings starting at $1,997
Used Ford Focus
387 Great Deals out of 80,322 listings starting at $1,295
Used Nissan Sentra
538 Great Deals out of 46,252 listings starting at $990

Used Cars For Sale

2018 Honda Civic For Sale
25,668 listings starting at $16,750
2017 Honda Civic For Sale
28 Great Deals out of 2,277 listings starting at $13,799
2016 Honda Civic For Sale
53 Great Deals out of 3,022 listings starting at $10,900
2015 Honda Civic For Sale
163 Great Deals out of 7,830 listings starting at $8,695
2014 Honda Civic For Sale
14 Great Deals out of 1,325 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.