2004 honda civic overheating

10

Asked by Apr 16, 2015 at 02:08 PM about the 2004 Honda Civic LX

Question type: Maintenance & Repair

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 cold air. It blows cold
air at stop lights or when going slow. When cold air is blowing temperature gage starts going up and engine starts overheating. I floor the gas all of a sudden hot air could start blowing and then temperature gage show engine temperature goes to normal.

I replaced the thermostat and it seemed to work
Okay for a month, then started this nonsense again.
I checked the head gasket and its fine.
And at times it will be totally normal its kind of a random thing that keeps happening every week... a Honda tech of 25 years said my car is totally fine and there's nothing wrong with it, then it will do it again the next day....
Anything else I can try?

3 Answers

62,265

Check the water pump,

85

Make sure you always have good amount of coolant in the radiator and make sure you use the 50/50 blend. I had the same problem and switched out my thermostat, cooling fan switch, cooling fan relay and almost the water pump. I found that I had a very thin crack on the hose that runs from the reservoir to the radiator. I swapped it out and now it works fine.

85

Also check your hoses. If they are too flimsy (when warm) change them.

Your Answer

Add photo

Related Questions

  • 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

  • Overheating 5 answers

    My sister car honda civic 2001model .When she tune on the heater it's start overheating when it's off doesn't overheat any help on this thanks in advance .

    2001 Honda Civic EX

    -

    Maintenance & Repair

  • '07 Honda Civic, overheating. 5 answers

    I have an '07 Honda Civic with roughly 140k on it. About 3 weeks ago I was traveling from Alabama to Tennessee. While on the freeway my car started overheating (the temp gauge started creeping up, t...

    2007 Honda Civic DX

    -

    Maintenance & Repair

  • is there a problem with 2003 honda civic automatic transmission? 9 answers

    I have seen references to a problem with the 2003 Honda Civic automatic transmission......what have you heard?

    2003 Honda Civic

    -

    Maintenance & Repair

Civic

Looking for a Used Civic in your area?

CarGurus has 80,892 nationwide Civic listings starting at $558.

ZIP:

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
677 Great Deals out of 82,246 listings starting at $500
Used Honda Civic Coupe
135 Great Deals out of 18,092 listings starting at $1,500
Used Toyota Corolla
738 Great Deals out of 74,267 listings starting at $1,991
Used Toyota Camry
823 Great Deals out of 90,656 listings starting at $1,300
Used Nissan Altima
778 Great Deals out of 77,241 listings starting at $470
Used Honda CR-V
665 Great Deals out of 56,241 listings starting at $2,090
Used Mazda MAZDA3
205 Great Deals out of 29,503 listings starting at $1,495
Used Hyundai Elantra
473 Great Deals out of 51,364 listings starting at $1,699
Used Honda Accord Coupe
125 Great Deals out of 10,219 listings starting at $1,997
Used Ford Focus
516 Great Deals out of 55,273 listings starting at $1,495
Used Nissan Sentra
463 Great Deals out of 53,626 listings starting at $2,000
Used BMW 3 Series
1,062 Great Deals out of 34,784 listings starting at $900
Used Ford Mustang
331 Great Deals out of 45,576 listings starting at $2,000
Used Acura TL
256 Great Deals out of 7,078 listings starting at $1,999

Used Cars For Sale

2017 Honda Civic LX For Sale
19,822 listings starting at $16,973
2016 Honda Civic LX For Sale
18 Great Deals out of 1,684 listings starting at $13,995
2015 Honda Civic LX For Sale
26 Great Deals out of 1,764 listings starting at $10,681
2014 Honda Civic LX For Sale
56 Great Deals out of 3,129 listings starting at $8,999
2013 Honda Civic LX For Sale
52 Great Deals out of 2,406 listings starting at $7,863