COOLING/HEATING

Asked by Dec 09, 2008 at 12:49 PM about the 1996 Honda Civic DX

Question type: Maintenance & Repair

1.WHERE IS COOLANT BLEEDER VALVE(TO PURGE AIR FROM SYSTEM).
2.MY HEATER BLOWS COLD AIR(BOTH HOSES NEAR FIREWALL ARE HOT).IT SEEMS TO ME
THAT AIR CIRC.SELECTOR IS NOT WORKING.ANY TIPS ON WHERE AND HOW TO CORRECT THIS PROBLEM WOULD BE APPRECIATED.

3 Answers

2,230

The air should automatically purge from the radiator through the recovery tank unless the system is dangerously low on coolant. Are you filling the cooling system through the radiator cap or the recovery tank? You should be filling while cold in the radiator. On a cold engine, remove the radiator cap. Insure the radiator is 100% full. If it isn't then fill with a 50/50 mix until full. LEAVE the CAP OFF and start the engine. Once it warms up, the thermostat will open and the radiator coolant level will drop. This will purge most of the air, then fill to capacity again and REPLACE the CAP. The water pump will circulate coolant SUCCESSFULLY only when the system is filled properly; sounds like yours isn't. When the coolant is low, a steady stream of coolant will not circulate through the heater core. Once the coolant in the core cools, you no longer have heat.

35

also, make sure that the heater core isn't clogged or leaking neither.

2,230

If the core had blockage, it would overflow from the surge tank. If the core had failed, it would leak into the passengers compartment. He didn't mention EITHER of those symptoms. You're creating extra effort.

Your Answer

Civic

Looking for a Used Civic in your area?

CarGurus has 78,667 nationwide Civic listings starting at $900.

ZIP:

Honda Civic Experts

  • #1
    Tom Demyan
    Reputation
    1,040
  • #2
    Takoda Fraser
    Reputation
    1,010
  • #3
    Jonathan Ford
    Reputation
    990
View All

Related Models For Sale

Used Honda Accord
1,030 Great Deals out of 63,283 listings starting at $999
Used Honda Civic Coupe
260 Great Deals out of 15,438 listings starting at $1,495
Used Toyota Corolla
930 Great Deals out of 66,537 listings starting at $1,900
Used Toyota Camry
1,107 Great Deals out of 72,797 listings starting at $1,000
Used Honda CR-V
906 Great Deals out of 55,003 listings starting at $1,007
Used Nissan Altima
1,141 Great Deals out of 75,113 listings starting at $999
Used Hyundai Elantra
548 Great Deals out of 42,270 listings starting at $795
Used Honda Accord Coupe
181 Great Deals out of 10,091 listings starting at $1,800
Used Ford Mustang
755 Great Deals out of 42,818 listings starting at $1,300
Used Nissan Sentra
548 Great Deals out of 50,729 listings starting at $2,000
Used Hyundai Sonata
759 Great Deals out of 47,839 listings starting at $199
Used BMW 3 Series
1,042 Great Deals out of 31,744 listings starting at $1,000

Used Cars For Sale

2017 Honda Civic For Sale
54,670 listings starting at $16,899
2016 Honda Civic For Sale
86 Great Deals out of 2,553 listings starting at $9,950
2015 Honda Civic For Sale
129 Great Deals out of 3,854 listings starting at $8,863
2014 Honda Civic For Sale
284 Great Deals out of 6,477 listings starting at $7,890
2013 Honda Civic For Sale
93 Great Deals out of 1,950 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.