Why am I losing Radiator Fluid when there is no leaks to be found?

Asked by Jan 19, 2015 at 02:32 PM about the 2008 Chevrolet Cobalt

Question type: Maintenance & Repair

I just got my car back from the getting the Radiator Check for leaks after noticing
Radiator Fluid smell coming out of my Air Vents when turning on my car.  My exhaust
seems to come out more heavily then normal as well. The Mechanic can't find nothing
wrong but I know there is and They Suggested that the heating core might be bad. (but
if it was it should of been leaking as well or the front window would be fogging up.) and
would cost about $1000 to replace.  I lose my Radiator fluid every 3 to 4 days. and its
going to hurt my wallet if i keep buying...

4 Answers

12,560

The smell is typical bad heater core, but if you are losing that much fluid you might want to do a combustion leak test. the kit is about 40 bucks. It sniffs the coolant system for combustion gasses. It will tell you if you have a bad head gasket.

Well A head gasket isn't hard to replace...I am worried about the Heating core....How does the Combustion leak test work?

12,560

it uses a test fluid that you use a vac pump to pull air from the radiator or coolant reservoir through. it is a colored fluid and if it changes color then you have combustion gasses in the coolant. that means the head gasket is bad. I dont know much about Chevy cobalt, but I would think that a heater core would be easier than a head gasket! But with these modern vehicles, you never know.

Had someone put a new radiator in is it supposed to be lose and now i am loseing transmisdipn fluid the lines look good they put orings in but still leaking

Your Answer

Cobalt

Looking for a Used Cobalt in your area?

CarGurus has 3,491 nationwide Cobalt listings starting at $1,490.

ZIP:

Chevrolet Cobalt Experts

  • #1
    lightGear
    Reputation
    1,200
  • #2
    munron
    Reputation
    1,120
  • #3
    dandyoun
    Reputation
    980
View All

Related Models For Sale

Used Chevrolet Malibu
1,086 Great Deals out of 62,504 listings starting at $880
Used Honda Civic
832 Great Deals out of 60,528 listings starting at $950
Used Chevrolet Impala
565 Great Deals out of 34,344 listings starting at $1,100
Used Ford Focus
798 Great Deals out of 62,796 listings starting at $900
Used Ford Mustang
582 Great Deals out of 39,803 listings starting at $1,895
Used Honda Accord
1,074 Great Deals out of 74,232 listings starting at $1,100
Used Toyota Corolla
957 Great Deals out of 66,683 listings starting at $1,699
Used Toyota Camry
1,116 Great Deals out of 86,207 listings starting at $995
Used Dodge Charger
456 Great Deals out of 33,916 listings starting at $1,999
Used Mazda MAZDA3
339 Great Deals out of 27,865 listings starting at $899
Used Nissan Altima
1,368 Great Deals out of 77,643 listings starting at $1,695
Used Nissan Sentra
778 Great Deals out of 51,073 listings starting at $2,200

Used Cars For Sale

2010 Chevrolet Cobalt For Sale
10 Great Deals out of 595 listings starting at $2,499
2009 Chevrolet Cobalt For Sale
8 Great Deals out of 643 listings starting at $1,692
2008 Chevrolet Cobalt For Sale
4 Great Deals out of 683 listings starting at $1,900
2007 Chevrolet Cobalt For Sale
665 listings starting at $1,490
2006 Chevrolet Cobalt For Sale
5 Great Deals out of 616 listings starting at $2,495

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.