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Heater core leaking through floor vents. - DeVille Cadillac Cars & Trucks

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  • yadayada
    yadayada May 19, 2011

    Replace the heater core?

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4 Answers

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  • Master
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Bad heater core you will need to replace it. About a 2 hour job, very easy to do:


Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
Remove the HVAC filter cover.
Remove the heater core/evaporator tube seals from the module.
Remove the heater core cover screws (1).
Remove the heater core retaining screws (1).
Remove the heater core retaining straps.
Remove the heater core.
Remove the rubber seals from the inlet/outlet pipes of the heater core.

Installation Procedure

Install rubber seals to the outlet/inlet pipes of the heater core.
Install the heater core to the module.
Install the heater core retaining straps.



Install the heater core retaining screws (1).
Install the heater core cover.



Install the heater core cover screws (1).



Install the heater core/evaporator tube seal from the module.
Install the HVAC filter cover.
Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.

Posted on May 19, 2011

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  • Master
  • 470 Answers

Are you sure it's coolant and condensation

Posted on Jun 07, 2014

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  • Cadillac Master
  • 5,370 Answers

For heater core replacing procedure. I suggest you to go through this related help links.Its all complete step by step procedure: ----How to replace heater core for All car models?

Click the link below: ---

http://technoanswers.blogspot.com/2011/11/how-to-replace-heater-core-for-all-car.html

--------------
How to Flush Heater Core?

http://schematicsdiagram.blogspot.com/2011/12/how-to-flush-heater-core.html

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How to Remove Heater Core ?

http://howtobyme.blogspot.com/2011/12/how-to-remove-heater-core-on-2008-honda.html
Heater Core Replacement?

http://howtobyme.blogspot.com/2011/12/honda-heater-core-replacement.html

------------
To replace heater core?http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on.html------

How to replace heater core?http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on_10.html
----------This will help.Thanks.

Posted on Feb 17, 2012

  • Level 3:

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  • Master
  • 752 Answers

Bypass it from under the hood till you can replace it.

Posted on May 19, 2011

6 Suggested Answers

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Posted on Jan 02, 2017

  • 1118 Answers

SOURCE: Antifreeze smoke coming out heater vents

depending on how bad, and how long the orginal core leaked, it might just be residue in heater box, and if it got up into the vents, it will take awhile for it to dry out.

Posted on Jan 22, 2009

alicantecoli
  • 22246 Answers

SOURCE: Heater core burned out and I want to bypass the coolant hoses.

use a short length of 15mm copper pipe and join the heater pipes together where ther connect to teh heater feed pipes in the engine compartment

Posted on May 09, 2009

techbuster
  • 5081 Answers

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

  • 82 Answers

SOURCE: need to replace heater core in 1993 buick. water

the core is under the middle of the dash - look in under hood - you will see 2 aluminum pipes going behind motor into firewall - these are a/c lines - close to this you will also see 2 black hoses about thumb size - these are the heater hoses to the heater core - the dash might have to come out to get heater core from a/c fan housing

Posted on Sep 21, 2009

  • 98 Answers

SOURCE: How to remove the heater core from a VW GolfMK3

there are alot of hidden screws holding the dash in. there are some up across the top of the dash by the windshield and defrost vents. also when you open the doors there are some in there. it is quit a difficult job I really dont recomend doing it yourself but if your not afraid to try and feel confident enough to tackle it good luck. it would be best to have an experienced mechanic do the job but it will cost over three hundred for labor. if you do it yourself go to a parts store that sells haynes repair manuals they cost about twelve dollars and are pretty helpfull.

Posted on Oct 31, 2009

Testimonial: "Thanks for the advice, I will find a manual and if gives some form of help I will do it myself. If not I will pay for it to be done. Thanks."

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I have jacked the 2000 Nissan maxima up got all the air pockets out, took both hoses running from fire wall off and flushed the heater core properly,checked the thermostat, my vents open and close when I...


If the heater core were leaking coolant, the fluid on the floor would be oily not clear.
When the engine is warmed up, are both heater hoses hot ?

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Vapor comeing out of vents with heater turned off. smells like coolant not leaking on floor and not fogging windows up like when my heater core went bad 3 years ago and had it replaced.


Sounds like you have a small leak in the heater core. this is a small radiator that fits in the heating system to provide the heat in winter. It is an extension of the cooling system and therefore has antifreeze in the core. You may just have a hose leaking a tiny bit around the connetion.

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THAT HAS NOTHING TO DO WITH A HEATER CORE IF CORE IS GOING OUT IT WILL LEAK THATSOUNDS LIKE AN ACTUATOR ACTING UP OR VACCUUM LINE LEAK BEHIND DASH

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Coolant leaks into passenger side floor and haze comes out of vents


usually when this happens it is the heater core that is leaking. does the windshield get fogged with defroster on!! if so its the heater core. good-luck and have a good day.

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When I run the heater or defroster, steam comes out the vents.


your heater core is leaking you need too replace it!!

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Smoke is coming out of my vents


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Feb 27, 2010 | 1988 Ford F 150

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Leaking heater corehow do I replace?


drain out your fluid
2.near the fire wall in engine, loosen clamps and remove heater hoses from th tubes running to the core.
3. remove dash panel on inside of car(passenger side)
4. remove the duct/vent from core.
5. remove cover(screwsand clips)
6. remove core retaining straps and pull out core.
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Antifreeze under floor mats


What you Discribe is Indickitive of The HEATER CORE Leaking into the HEAT / EVAPERATOR BOX Adn Can be Corrected By Replacing the Heater Core. PLEASE Reply for Replacement Procedure. Hope this Helps

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