Question about 2003 Chevrolet S-10

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I recently changed the antifreeze and now get a smell from the heater

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You may have a small leak in the heater core. Are you smelling antifreeze? If so may be small leak

Posted on Oct 02, 2010

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Your heater core or its hoses are leaking or hopefully just loose, get behind the dash with a flashlight. not fun, have patience....

Posted on Oct 02, 2010

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1 Answer

2003 Jeep Wrangler


heater core may have a leak.

Jan 29, 2014 | Cars & Trucks

1 Answer

Sugary burning smell while driving


That smell is most likely antifreeze. If the smell gets noticeably stronger when you turn on the AC/Heater, it is possible that your "heater coil" has started leaking. You will need the services of a professional if that is the case. Those are very hard to change.

Another possibility is your thermostat is not opening, causing your engine to overheat - steaming some of the coolant (antifreeze)/water mixture out of the system.

And thirdly, it is possible that someone spilled antifreeze on the radiator etc when adding fresh antifreeze - and you smell it after the engine warms up. If your car is not over-heating and you are not having to ad antifreeze/water to the radiator, then just keep driving. The problem will most likely go away.

I hope this is helpful to you. If yes, please take a sec to rate me. Thanks!
Don

Apr 04, 2012 | 2000 Chevrolet Impala

2 Answers

My ford 1997 F-150 4.6L has a antifreeze smell in the cab when it is running, think it might be the heatercore?


yes it sounds like it might be the heater core when your heater core goes bad it leaks and seeing that it is in the cab it will have that smell usually when it leaks your floors will be wet from the leak. bypass the heater core unitl you can get it fixed to prevent any electrical problems

Nov 21, 2011 | 1997 Ford F150 Regular Cab

1 Answer

Recently had the raditor flushed and hot light


thats because it is leaking antifreeze into the cab through the heater core

Mar 28, 2010 | 2000 Volkswagen Beetle

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

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

2 Answers

When i run my 1996 dodge ram 1500 it smells like antifreeze. i had the head changed but it smells like antifreeze. what could be the problem?


check the coolant level to see if it has dropped.Then look under the engine,for any leaks.Look for pools of coolant on top of the engine,or run down on the sides of the engine.Then look for radiator hoses,ans heater hoses that are leaking.If you are loosing antifreeze ,and you are sure the coolant is going somewhere,you may sill have a head,or head gasket,that are bad.If it has not been long before the head change,then the antifreeze may be still present in the exhaust,or on the engine,so you may have to wait a little longer for smell to disapate.Cleaning the engine can help.

Oct 10, 2009 | 1996 Dodge Ram 1500 Club Cab

1 Answer

Heater Core Leaking 2001 GMC Sierra 5.3. I have a strong antifreeze smell in the cab and this morning the heater fogged up the windows. I have read that replacing the heater core also involves evacuating...


you could quick fix! but you will have no heat, 1st under the hood, look at the back of motor, follow all you're radiator hoses, take two hoses off the heater core stick a pipe that is big enough then clamp the pipe down. to both sides of hoses to the pipe you will eventually have to replace heater core!!

Mar 24, 2009 | 2001 Chevrolet Silverado 1500

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