Question about 1995 Toyota 4Runner

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I need to remove the heater unit box in a 95 4runner do Ineed to discharge the A/C before doing this?

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  • Contributor
  • 18 Answers

Only if evaporator cant be separated..

Posted on Oct 14, 2013

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Posted on Jan 02, 2017

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SOURCE: Heater unit access and removal 1995 toyota corolla

theres a box behind the glovebox it should be cyclindrical in shape with three skrews in the bottom of it remove these and the heater motor will fall out

Posted on Nov 06, 2009

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1 Answer

Remove heater core 2003 dodge stratus


This is a BIG job, requiring removal of the dashboard, discharging the a/c system, and removing the heater/airconditioning unit from the car (a big box with the evaporator, heater core, blower fan, and various doors that direct airflow). If you want to DIY, there are several videos on YouTube for similar models - you can view those to get an idea of what is involved.

Oct 29, 2016 | 2003 Dodge Stratus

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Why must i discharge the air conditioning refridgerant prior to removal of the heater core on a 2003 c230 mercedes 1.8l coupe.


The reason in why you must evacuate the a/c system with an a/c machine before you can remove the heater core is because the evaporator is located inside of the heater core box assembly. So before the heater core box assembly can be removed the a/c system must be evacuated then you can disconnect the a/c lines that go through the firewall to the evaporator.

Jul 01, 2015 | 2004 Mercedes-Benz C230 Kompressor

1 Answer

How do I remove the glove box door from my 2000 Dodge Ram 1500?


  • Have the air conditioning system discharged at a dealer service department or auto AC repair facility. Drain the cooling system by removing the plugs under the radiator and then the engine block, draining the coolant into a clean container. Disconnect the negative battery cable.

  • 2

    Disconnect the heater hoses at the engine compartment's right side at the firewall by sliding the clamps away, then plug or tape shut all the openings. Disconnect the accumulator and refrigerant lines to the AC accumulator and mounting bracket, then detach the accumulator and its mounting bracket from the firewall.

  • 3

    Remove the instrument panel from inside the truck. With the front wheels turned forward and the steering column locked, remove all trim and kick panels along the door frames. Then lower the steering column and remove its covers and the instrument cluster, glove box, cup holders, all electrical connectors and panel fasteners. Lift the panel out through the front door.

  • 4

    Remove the Powertrain Control Module from the engine. Carefully disconnect the three to four electrical connectors on the module, then remove the module's mounting bolts.

  • 5

    Disconnect the two nuts on the studs mounting the heater unit in the engine compartment. Disconnect the electrical connector to the blower motor resistor from the interior of the truck along with the connector and vacuum hoses from the heater unit. Remove the mounting nuts and bolt to the unit from the interior and remove the heater unit.

  • 6

    Remove the two retaining screws on the heater core, located at the top of the two lines on the core that form a triangle. Pinch the release tabs on the upper corners of the heater core and lift the core from its housing


    sincerely. God bless you


    ernesto cuadra

    managua, nicaragua

  • Feb 15, 2012 | Cars & Trucks

    2 Answers

    Leaking on the passenger side, next to centre console. Dropping water level in so that it needs refilling almost daily 0.5 litre+. How do you fix it or can get a quote.


    your heater core is leaking, need to replace it or u can put a hose connector to by-pass heater, this is done for temporary repair only. under hood look for two coolant hoses that go into firewall of veh. and install a hose connector that is same outside diameter of the inside of hoses & install two clamps to keep pressure from coming out.

    Jan 15, 2011 | 1998 Subaru Legacy

    1 Answer

    Bad evaporator coil


    Its a big job, The heater box needs to come out, which entails discharging the AC, removing heater hoses, and hardware at the firewall. The complete dashboard needs to be removed and swung out of the way, steering column lowered , and heater box removed and disassembled for evap replacement ( simplified )

    Jul 21, 2010 | 2002 Dodge Durango

    1 Answer

    Anayfig@yahoo.com


    you only have to empty the ac if you have to remove the entire heater ac box from the truck to get to the heater core. heater core removeal info should be available at your library.i dont think you do but when you try to remove the parts to get out the heater you find the ac hoses moving with it yes.stil no additional work at that time as it would need to be done anyway. if you are afraid to start get the info you need from the libraey because there are many other things you need to know ! before! you begin.

    Feb 14, 2010 | 2003 Chevrolet S-10

    1 Answer

    Hearter core removal


    1. Disconnect the negative (-) battery cable.
    2. Drain the engine coolant into a suitable container.


    CAUTION When draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
    1. Disconnect the heater hoses. Be careful not to damage the core by pulling on the hose to remove. Cut the hoses if they will not come off easily.
    2. Remove the instrument panel.
    3. Disconnect the resistor assembly.
    4. If possible, disconnect and move the duct (non air conditioning) or the evaporator housing (air conditioning) to the right to gain clearance for the heater unit. If equipped with air conditioning, do not disconnect air conditioning system until absolutely necessary. Refer to for discharging, evacuating and recharging the system.
    5. Remove the instrument panel stay and heater unit.
    6. Disassemble the heater unit by removing the duct, mode control case, core assembly and heater core.

    To install:
    1. Assemble the heater unit by installing the duct, mode control case, core assembly and heater core.
    2. Install the heater unit and instrument panel stay.
    3. Connect the duct (non air conditioning) or the evaporator housing (air conditioning) to the heater unit. Evacuate and recharge the air conditioning system if the system was discharged to remove the evaporator assembly.
    4. Connect the resistor assembly.
    5. Install the instrument panel as outlined in this section.
    6. Connect the heater hoses. Be careful not to damage the core by pulling on the hose.
    7. Refill the engine coolant into a suitable container.
    8. Connect the negative (-) battery cable and check for leaks.

    Jan 20, 2010 | 1996 Isuzu Trooper

    2 Answers

    Heater core


    Hello there:
    These are not hard to remove the hard part is to get the two halves of the box open they are sealed together so what you need to do is to get a really sharp utility knive and cut along the seam and then this will allow you to split the box and remove the covere so you can get to the heater core.
    Once the repairs have been made make sure that you reseal the two halves so that no water or air will get inside ok.
    best regards michael

    Oct 31, 2009 | 1998 Chevrolet Blazer

    1 Answer

    Heater core


    You will find the instructions here and unfortunately it looks like you will have to discharge the a/c.......sorry :(
    hope you find this helpful and thanks for choosing FIX YA!

    Jan 17, 2009 | 2000 Dodge Durango

    1 Answer

    Heater-core re-placement 1998 K-1500 w/air


    The problem is one of accessability. The heater core is wedged in between to halves of an air distribution case and held in position with two clamps. If you remove the lower cover, you may be able to see the heater core, but you may find that the tubes that protrude from the side of the core will prevent its removal. The normal procedure is to discharge the A/C system with the proper recovery equipment and remove the entire heater box as a unit. Cutting into the case may damage the doors and actuators that control the blend-air and mode operations of the unit as a whole. I had the same problem with my 78 LeBaron, and the dash assembly had to be removed to allow the heater box to come out.

    Sep 26, 2008 | 1998 Chevrolet K1500

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