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How to change a heater core in a 1999 Chevy Malibu?

How to step-by-step replace a heater core in a 1999 Chevy Malibu?

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Before starting this job I would get a repair manual. This is not a easy job, 6+ hours for an experienced tech with all of the right tools. And you may have to discharge and recharge the AC system.

Posted on Jan 30, 2009

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Charles,when they get clogged,you must replace,need help doing that,if so then we need the year,make ,model and engine size.

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Feb 17, 2012 | 1998 Chevrolet Malibu

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I need to change the heater core in a 2004 Chevy Malibu Classic and can't find schematics or directions. I can't afford labor charges. Where can I get info to help me?


the best is to go to any auto parts store to buy a haynes manual for your car . they are based on a complete teardown of vehicle. for about 25.00 dollars. this book will show how its done. there are too many steps to mention. good-luck! toolman,

Sep 15, 2011 | 2004 Chevrolet Malibu

1 Answer

Where is the heater core at on a 1999 chevy malibu with the 3100 in it


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 31, 2010 | 1999 Chevrolet Malibu

1 Answer

How do i change the heater core on my 1999 chevy silverado 1500?


Inspect/Replace If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 11, 2010 | 1999 Chevrolet Silverado 1500

1 Answer

What is the easiest way to replace the heater core in a 1998 Chevy Maulibu


if im not mistaken you have to tare out the dash to replace that

Nov 26, 2010 | 1999 Chevrolet Malibu

1 Answer

I have a 1997 chevy malibu and I have water leaking from the hard pipe coming out of my heater core. The light has been on for days and it started overheating yesterday. Do you know what I should...


Replace heater core. You did not say if the leak was inside car or on outside firewall. Heater cores are cheap but to do it yourself it takes most of the day and you must be skinny.

Sep 17, 2010 | 1997 Chevrolet Malibu

1 Answer

How do i replace a heater core in a 1999 cadillac deville


Hello,

Here is detailed solution on how to replace the heater core in the 1999 cadillac deville;



STEP 1 Disconnect the negative battery cable.


STEP 2. Drain and recycle the engine coolant.

STEP 3. Disconnect the heater core hoses using tool J-37097 or an equivalent.

STEP 4. Remove the right side sound insulator and the glove box module.


STEP 5 Remove the programmer shield, if equipped, and disconnect the air mix valve link.

STEP 6 Disconnect the programmer vacuum and electrical connectors.

STEP 7 Remove the heater core cover, leaving the programmer attached.


STEP 8 Remove the heater core retaining screws and the heater core.



have a nice day..

Aug 27, 2010 | 1999 Cadillac DeVille

1 Answer

Easy way to change the heater core in a 99 chevy Malibu


The only easy way to change a heater core is to have someone else do it.

Feb 18, 2010 | 1999 Chevrolet Malibu

1 Answer

HEATER CORE


Going to your local public Library would be best at this point.
Also,,i should warn you that replacing the heater core is a difficult job for someone inexperienced, and even when you know what you are doing, it is difficult.

Jan 09, 2009 | 2004 Chevrolet Malibu

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