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Leaking antifreeze heater core - ECHO Toyota Cars & Trucks

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It happened to me a couple times You get antifreeze all over the windshield.

Posted on Nov 28, 2013

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Posted on Jan 02, 2017

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emissionwiz
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SOURCE: Brief antifreeze smell in Jeep

Make sure the cooling system is clean with fresh coolant when u change the core, otherwise u may damge the new core becuase your coolant is worn out, if your Jeep has over 60,000 it should be done anyway, also I recommend at least a new upper radiator hose while it is drainned and inspect the other parts of the system.

Posted on Jan 30, 2009

  • 118 Answers

SOURCE: How to remove heater core from 2000 Pontiac

Wow I hope youre mechanicly inclined, big job the entire dash & carrier have to come out 7-15 hr job if you know what you are doing to much to list hear I would check heater hoses at fire wall first make sure they arnt leaking. I wish you well

Posted on Aug 31, 2009

  • 25 Answers

SOURCE: strong antifreeze smell when running the heater in

Usually a smell of antifreeze in the cab when the heater is running is a sign the heater core is leaking. Just becasue you dont see a leak at this time doesn't mean there isn't one. It might small enough that the haet from the core is burning off the leaking antifreeze. I would suggest replacing the core before you get in one day and there is a puddle on your floorboard. Or if you go to a local parts store and rent a cooling system pressure tester, wait until the vehicle is cold, pressure the system to 12 lbs and then check for leaks. Hope this helps you out......

Posted on Oct 22, 2009

Testimonial: "that is what i also thought, no puddle yet, just waiting. I tried a sealant for now, but will get a heater core"

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2 Answers

1998 Chrysler voyager van water leaking form heater core. once water is added in to radiator makes no difference using antifreeze


As long as the coolant is full, You won't have problems with heat. Check the rest of the system for leaks. Can't find a leak and still gets low. 2 possibilities. Heater core is leaking or head gasket is leaking. I would lean towards the heater core because of the water inside.

Feb 25, 2016 | 1998 Chrysler Town & Country

2 Answers

Smell of antifreeze in the car why is that?


If it's not leaking externally I would check the heater core. Feel the carpet under the passenger's side of the dash. Wet carpet = heater core.

Dec 30, 2010 | 1995 Saturn Sc

2 Answers

Either its the heater core or the thermostat


your heater core is definitley leaking and your blower is pushing the vapor into the cabin. It will only get worse. You can minimize the smell by not running your heater or defroster, but you wont prevent the coolant from leaking and potentially getting worse. Sorry to say, the core will need pulled and repaired or replaced. Sometimes stop leak additives will solve the problem if its not too severe. I have never been a fan of them, its only a band aid in my view. also if u got pets afoid leeting they smell the antifreeze very toxic can kill pets easily. hope this helps. rate above 4* cheers

Mar 12, 2010 | 2005 Jeep Grand Cherokee

1 Answer

Heater blowing cold air


If there is a internal antifreeze leak, there will be antifreeze mixed in your oil. Check your oil. If there is antifreeze in there, you probably have a bad head or base gasket. Worst case scenario is your block is cracked somewhere. Check your heater core and the lines as well. If the heater core is bad it will be leaking.
Check the thermostat housing for a leak. Sometimes
the antifreeze will leak from there, and burn on top of the exhaust instead of dripping onto the ground. Good luck

Feb 18, 2010 | 2000 Dodge Caravan

3 Answers

Will not heat. I smell antifreeze inside. Thermostats been changed, new antifreeze added.


If you smell antifreeze in the cabin then it could be a hose loose or the heater core has a leak/pressure leak - in which case get it looked at ASAP because it could lead to overheating of the engine.

Check the hoses going to the heater core and make sure they are not cracked or disfigured and are on tight. Any moisture near or on the core (and/or corresponding corrosion) is an indication the hoses are ot doing there job or the core is leaking.

BTW, If you are loosing coolant (due to a faulty heater core) it could "explode" (relax, you are basically safe on the other side of the dash-board), but the result could be a destroyed heater core and a very expensive repair bill - I know because its happened to me!

Jan 05, 2010 | 2000 Daewoo Leganza

1 Answer

Antifreeze leaking into cab under glove comp.


heater hose or heater core you can solder the heater core if you can find the leak oh and if the rest of it is good

Nov 22, 2009 | 1984 Chevrolet Chevy

1 Answer

Strong antifreeze smell when running the heater in 99 silverado, can't see a leak, strong smell, is heater core bad


Usually a smell of antifreeze in the cab when the heater is running is a sign the heater core is leaking. Just becasue you dont see a leak at this time doesn't mean there isn't one. It might small enough that the haet from the core is burning off the leaking antifreeze. I would suggest replacing the core before you get in one day and there is a puddle on your floorboard. Or if you go to a local parts store and rent a cooling system pressure tester, wait until the vehicle is cold, pressure the system to 12 lbs and then check for leaks. Hope this helps you out......

Oct 22, 2009 | 2001 Chevrolet Silverado 1500

3 Answers

1999 Crown Victoria


the heater core is leaking.

Oct 24, 2008 | 1999 Ford Crown Victoria

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