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How do i replace the heater core in my 1999 buick century. and how do i disconnect the airbag to avoid acidentally deploying it

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Hi there,
Well the heater core is located under the dash on the passenger side, usually cased in a plastic housing.You may have to remove the glove box in order to have access to. And when you get to the point, when you are disconnecting the coolant lines and remove the core you use some clothes to protect the carpet as fluid may drip. Post comments for further help or information........
Good Luck!!

Thanks for using FixYa!!

Posted on Oct 13, 2010


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Is it expensive to over to get a heater core changed in a 1999 Buick Century

From what I have researched the core runs 50 - 60 USD. It appears that accessing the core is not as difficult on this model as some others, and I would estimate that a shop would charge about 2-3 hours labor to do it. You would also have the cost of replacement coolant as well and possibly new hose clamps depending on the condition of the existing ones. If you are moderately capable, it is a job that can be done DIY and there are a few Google links explaining step-by-step how to do it. A shop (US) current charges 70-100 USD per hour for labor, so you can do the math.

Sep 19, 2015 | 1999 Buick Century

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How do you chage heater core on 1998 buick park ave

  • Lift the hood and prop it open. Makes sure the engine is cold. Disconnect the negative battery cable with a socket wrench or box wrench. Avoid using open-end wrenches on the battery terminals, as they tend to strip the bolt heads.
  • 2Place a drain pan under the radiator. Open the radiator cap. Open the radiator drain on the bottom of the radiator and the two coolant drains near the oil pan. You can reuse the coolant unless it appears cloudy and contaminated. Close all three drain openings once all the coolant has drained from the system.
  • 3Disconnect the inlet and outlet hoses of the heater core inside the engine compartment using a socket wrench. Be prepared to catch or wipe up any coolant that drips from these hoses. Drain the coolant from inside the heater core.
  • 4Unscrew and remove the lower instrument panel sound insulator from below the dashboard on the passenger side. Use a socket or screwdriver to loosen and remove the screws on the heater floor outlet. Remove the clips and take out the duct.
  • 5Loosen and remove the screws holding the heater core cover in place. Remove the cover.
  • 6Remove the retaining bolts holding the heater core in place. Remove the heater core.

  • Read more: How to Replace a 1998 Buick Century Heater Core '

    Sep 27, 2011 | 1998 Buick Park Avenue

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    I have a 2000 dodge durango and my heater core is leaking so i know i have to replace it. I want to know how do i disconnect the passenger air bag so it doesn't deploy. Everything I can do myself.

    You will need to disconnect the battery first and then wait 2 minutes before any attempted repair. This will allow the airbag control module to discharge and prevent the airbags from deploying. Then disconnect the airbag control module below the center of the dash mounted to the floor.(The big yellow connector) If you remove the dashpad and frame as one assembly there will be no need to unplug the connector on the passenger airbag.

    Jan 20, 2011 | 2000 Dodge Durango

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    1999 buick century with dual temp controls was making loud squeeking sounds and final quit working. if it is the heater blower as previous eluded to, where is th eheater blower located and what is th...

    Heater blower motor is the proper terminology for this. Best getting it with the fan attached. Said unit is under the hood attached with small bolts to the heater core box on the passenger side firewall. It's the round piece that sticks out and is easily replaced once you have everything out of your way.

    Jul 10, 2017 | 1999 Buick Century

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    1]Iam driving 1999 buick century and its saying,"engine service soon'' which indicating inside.So what I have to do.?pls guide me. 2]And also my heater though it blows but it will not give hot...

    If there is a service engine soon light on, then there are codes that need to be read off of the computer. One can get an obd-ii scanner for under $100 at Sears or walmart or get Advance Auto Parts or Autozone to scan for free.

    On the second question, check that the heater core is getting hot on both tubes at the firewall (heater hoses 1").
    If not, then the system needs flushed or the heater core will have to be replaced.
    If they are getting hot, then there is a blend door problem.

    Nov 29, 2010 | 1999 Buick Century

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    Airbag light says on: when tested it was ready to depoy why

    When your airbag light is on, it means that the air bag system is malfunctioning, and not ready to deploy. You will need to take it to a dealership where they actually have the knowledge to find and fix your problem.

    Jul 02, 2009 | 1999 Buick Century

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    Jun 20, 2009 | 1999 Buick Century

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    of course it does, components of the system must be disconnected.

    Jan 29, 2009 | 2000 Buick Century

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    Heater Core Installation

    1. drain the radiator
    2. remove the hoses from the heater core under the hood on the passengers side. ( be sure to mark them so you know which one go's where ) plug the ends of the heater core to avoid spilling coolant when removed.
    3. remove the right side under dash pannel.
    4. remoe the heater floor outlet duct.
    5. remove the screws and clis that secure the heater core cover.
    6. remove the heater core retaining straps and remove the heater core from the housing, being carefull not to spill and coolant.
    7. installation is these steps in reverse.
    I hope that this is helpfull to you and that you take the time to rate this response.
    thank you

    Oct 13, 2008 | 1995 Buick Century

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