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

45

your heater core needs to be flushed or changed

2 out of 2 people think this is helpful.
62,955

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 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Heated Seat Issue 10 answers

    Took delivery of a 2008 Civic EX-L on February 14, 2008 (5 speed manual/without Nav). Nice enough car for a subcompact, reasonably comfortable, light clutch, smooth shifter, perfect paint but I have ...

    2008 Honda Civic EX-L

    -

    Maintenance & Repair

  • 2004 Honda civic heater and engine overheating. 2 answers

    I have a 2004 Honda civic. My heater only works when I drive about 40 mph or more, but not always. Sometimes even while moving it will blow non heated air. It blows cold air at stop lights or when ...

    2004 Honda Civic EX

    -

    Maintenance & Repair

  • Why is my heater not working well in my Honda civic 19 answers

    I have a 2005 Honda civic. My heater only works when I drive about 30 mph or more, but not always. Sometimes even while moving it will blow non heated air.It blows cold air at stop lights or when g...

    2005 Honda Civic LX

    -

    Maintenance & Repair

  • 1999 Honda Civic Dies while driving 87 answers

    i have a 1999 honda civic ex which has 165,000 miles. Within the last few months the car will shutoff while driving. i have no power steering, nothing. i have to pull the car to side of the road an...

    1999 Honda Civic

    -

    Maintenance & Repair

  • Heating problem

    Son my car is a Honda Civic ex 2005 ! It starts perfectly but the hot air only comes agent I'm moving faster than 30 mph when I stop, it stops blowing hot air and cold air starts getting in. Anoth...

    2005 Honda Civic EX

    -

    General

Search Honda Civic Questions

Honda Civic Experts

#1 Takoda Fraser
Takoda Fraser
Reputation 970
#2 Jonathan Ford
Jonathan Ford
Reputation 960
#3 Tom Demyan
Tom Demyan
Reputation 930
View All

Related Models For Sale

Used Honda Accord
716 Great Deals out of 82,625 listings starting at $500
Used Honda Civic Coupe
159 Great Deals out of 18,382 listings starting at $1,500
Used Toyota Corolla
751 Great Deals out of 75,112 listings starting at $1,790
Used Toyota Camry
874 Great Deals out of 91,816 listings starting at $1,300
Used Nissan Altima
782 Great Deals out of 78,179 listings starting at $470
Used Honda CR-V
690 Great Deals out of 57,024 listings starting at $1,600
Used Hyundai Elantra
504 Great Deals out of 52,566 listings starting at $1,699
Used Mazda MAZDA3
212 Great Deals out of 29,455 listings starting at $1,495
Used Honda Accord Coupe
129 Great Deals out of 10,257 listings starting at $1,100
Used Ford Focus
557 Great Deals out of 55,897 listings starting at $700
Used Nissan Sentra
482 Great Deals out of 53,701 listings starting at $1,600
Used BMW 3 Series
1,101 Great Deals out of 35,764 listings starting at $900
Used Ford Mustang
313 Great Deals out of 45,688 listings starting at $2,000
Used Acura TL
255 Great Deals out of 7,162 listings starting at $2,200

Used Cars For Sale

2017 Honda Civic For Sale
55,016 listings starting at $16,389
2016 Honda Civic For Sale
32 Great Deals out of 4,766 listings starting at $13,995
2015 Honda Civic For Sale
69 Great Deals out of 3,172 listings starting at $10,681
2014 Honda Civic For Sale
92 Great Deals out of 4,611 listings starting at $8,999
2013 Honda Civic For Sale
128 Great Deals out of 4,288 listings starting at $6,988