Question about 1998 Chevrolet Lumina

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Leaks antifreeze could it be the heater core?

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  • 133 Answers

That depends on whether or not you also notice some leakage into the passenger compartment footwells. If the heater core has failed, the coolant tends to fill the front footwells, particularly on the passenger side.

One thing that I have seen multiple times, though, is the water pump tends to leak, particularly if it is the original pump. They have a high pattern failure rate.

Posted on Nov 13, 2009

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IF IT'S LEAKING INSIDE THE CAR ON THE FRONT PASSENGER FLOOR BROAD YES.

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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SOURCE: Brief antifreeze smell in Jeep

you are at the beginning stages of the heater core going out on you..just because theres no moisture inside doesent necessarily mean the heater core is still ok it just means its going to start leaking on the outside more than likely

Posted on Jan 29, 2009

  • 42 Answers

SOURCE: heater core leaking antifreeze

advance has a brochure that will help or you can buy a hayes or chilton repair manual from their and it will give you step by step instructions with illistrations.

Posted on Jun 20, 2009

techbuster
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SOURCE: How to remove heater core from 2000 Pontiac

Heater Core Cover Removal procedure
Remove the right instrument panel insulator. Refer to Closeout/Insulator Panel Replacement - Right in Instrument Panel, Gauges and Console.
Remove the left instrument panel insulator. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gauges and Console.
Remove the lower center console. Refer to Console Replacement - Front Floor in Instrument Panel, Gauges and Console.
Remove the console bracket. Refer to Bracket Replacement - Console Floor in Instrument Panel, Gauges and Console.
Remove the floor duct brace
Remove the floor duct

Remove the screws retaining the heater core outlet cover.
Remove the heater core outlet cover.

Remove the screws retaining the heater core cover.
Remove the heater core cover.

nstall the heater core cover.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Install the heater core cover retaining screws.

Tighten
Tighten the screws to 1.6 N·m (14 lb in).

Installation procedcure

Install the heater core outlet cover.
Install the heater core outlet cover retaining screws.

Tighten
Tighten the screws to 1.6 N·m (14 lb in).

Install the floor duct.
Install the floor duct brace.
Install the floor duct brace retaining nuts.

Tighten
Tighten the nuts to 10 N·m ( 89 lb in).

Install the console bracket. Refer to Bracket Replacement - Console Floor in Instrument Panel, Gauges and Console.
Install the lower center console. Refer to Console Replacement - Front Floor in Instrument Panel, Gauges and Console.
Install the left instrument panel insulator. Refer to Closeout/Insulator Panel Replacement - Left in Instrument Panel, Gauges and Console.
Install the right instrument panel insulator. Refer to Closeout/Insulator Panel Replacement - Right in Instrument Panel, Gauges and Console.


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"

  • 484 Answers

SOURCE: Leaking heater core?

If you do not want to buy a Haynes manual (or a Chilton), you can get a free one by logging on to autozone.com and registering. Add your car to your garage and they let you use online manuals similar to a Haynes' or Chilton's with diagrams. i cannot say for certain how good it will be, though, as i have had some good and some not as good experiences with their manuals. But, hey, for free? It is at least worth a look.

i hope this helps,
matthew

Posted on Oct 24, 2009

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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.

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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

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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
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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!

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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......

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the heater core is leaking.

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