Question about 1983 Chevrolet El Camino

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Heater core instalation in "83 El Camino

I need to know how to replace the heater core in my El Camino is it on the inside of dashboard or outside on the firewall....I have never replaced one before ...I would like to get a hold of instruction & a diagram if possible.Thanks for all your help

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  • lpamark Dec 26, 2008

    heater coil repair

  • vfrymire
    vfrymire Apr 02, 2013

    you have to go in threw the glove box



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Replace heater core

    • Drain the cooling system. Draining the cooling system will prevent toxic engine coolant from leaking into the passenger cabin of the vehicle during removal of the heater core. To drain the cooling system, simply disconnect the lower radiator hose from the radiator by loosening the hose clamp and pulling the hose off. Be sure to drain the fluid into a sealable container and dispose of the coolant at an appropriate disposal site.
    • 2Pull the dashboard six inches rearward. In order to do this, you must remove the following parts; the center dash bolt (located under the defroster vent cover), the bolts under the driver and passenger kick boards, the bolt connecting the dashboard to the radio mount, and the the bolt connecting the dashboard to the rear of the glove box. The locations of these bolts are immediately apparent upon looking under the dash. Once you have removed these bolts, you can pull the dashboard rearward and secure it.
    • 3Remove the heater core box. The heater core box is a black plastic box that surrounds the heater core. This part should be visible when looking down into the dashboard from the passenger side seat. Remove the two bolts on top holding it to the firewall and another on the bottom near the foot well. After removal of these bolts, the heater core and box are attached to the vehicle only by the coolant lines, which you can now disconnect by reaching into the box and pulling them off of the heater core (you may have to loosen the clamps first).
    • 4Install the new heater core. This is accomplished by applying steps 1 through 3 in reverse order; re-connect heater core coolant line, re-install heater core box (be sure to apply silicon sealant to the edges of the box, hermetically sealing it), replace the dashboard and install bolts, and re-fill the cooling system.

Oct 22, 2012 | 1999 Chrysler 300M

2 Answers

Need to know exactly how and what is looks like for the heater core. how to replace it.

the heater core is simaliar your radiator It tipacly is located at the firewall passengers side 1 hose in 1 hose out not very large in demension.

Aug 21, 2011 | 2005 Chevrolet Impala

1 Answer

Need to replace heater core in 1985 chevy el camino..isnt core inside under dash on passenger side of vehicle

The heater core in 1985 was still accessed from the engine compartment. After you drain the cooling system, disconnect the heater hoses. They should be 2 different sizes so take note of which one goes where. Unplug the electrical from the case and then unbolt it. Pull it off and replace the heater core.
If you have A/C then it is a little more complicated. After you remove the heater hoses there is a retaining bracket and ground strap that have to come off first. Then take off the rubber seal and screen. The right wiper arm needs to come off next followed by the diagnostic connector, high blower relay and thermostatic switch. Now you can unplug the electrical from the case and the top cover and screen and take the heater core out.
Once you have it back together, when you go to bleed the air out of the system, make sure the heater is turned on maximum heat and the fan is on high. This will ensure that coolant goes through the new heater core. Hope this helps.

Apr 24, 2011 | 1985 Chevrolet El Camino

1 Answer

Has been sitting for 10 years it is a 1982 el camino conquista. how would i get it started

Long time sitting so the carburetor will need to be torn down and rebuilt first. The fuel tank will need to be cleaned as well. Radiator shops do that with a pressure check. Change the fuel filter and a new gas line is recomended as well. Varnish is in the lines as you may know from sitting for ten years. All rubber hoses are dry rotted too although they may look good to the eye. The radiator will need to be pressure check and the heater core too. Coolant sitting in these parts will soak the metallic parts and soften the metals causing build up to plug these cores up from age. You will be better off replacing the radiato and heater core for I know if not drained ten years back they will be no good to use

Jun 20, 2010 | 1982 Chevrolet El Camino

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The blinkers dont work in my 83 el camino. i replaced the switch in the column and checked all fuses and relays. everythings good. hazzards work also horn. all of witch is in the turn signal switch. need...

Did you recently put wider than stock tires on your car? The wiring harness for the rear lights runs down the outside of the drivers side frame rail, wider tires will rub on the harness and cause damage to it and subsequent light failures.

Mar 27, 2010 | 1983 Chevrolet El Camino

1 Answer

Need to replace heater core on 96 tbird....I have Instrument panel out.....glove box console (climate control unit and stereo) out......have heater hoses disconnected and two mounting nuts...

Section 12-03A: Air Conditioning System—Manual A/C-Heater 1996 Thunderbird, Cougar Workshop Manual REMOVAL AND INSTALLATION Heater Core Removal
  1. Partially drain the cooling system.
  1. Remove the tube gasket from the heater core tubes.
  1. Remove four heater core access cover retaining screws, and remove the access cover from the A/C evaporator housing (19850).
  1. Remove A/C electronic door actuator.
  1. Slide heater core (18476) and seals from the A/C evaporator housing (19850).
  1. Install the heater core (18476) in the A/C evaporator housing (19850) with the tube gasket on the outside of the case.
  1. Install the A/C electronic door actuator as described.
  1. Position the heater core cover on the A/C evaporator housing (19850). Install the four retaining screws.
  1. Refill the cooling system.

    Heater Core

    Item Part Number Description 1 18596 Heater Core Tube Gasket 2 18476 Heater Core 3 18B300 Heater Core Cover 4 390747-S2 Screw (4 Req'd) 5 18N267 Heater Core Cover Seal
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      Feb 16, 2010 | 1996 Ford Thunderbird LX

      3 Answers

      77 el camino leaks from passenger side behind dash. what could it be?

      Hello there:
      This leakage that youare seeing is coming from the heater core which means that you will need to remove the heater core and get a new one
      The best way to do this is to Mark and disconnect the 2 hoses that are going thru the firewall to whick pipe they attach to on the heater core then remove the 6 or 8 nuts or bolts that hold it into place then you will find that the box that the heater core is sitting in may have some nuts and bolts on it to so remove them next the box itself needs to be seperated at the seam to assist in the removal of the heater core so cut along the seam with a very sharp knife or a utility knife and then remove the old heater core and install the new one then put everything back and dont forget to reseal the box otherwise you wont get much heat flow from the core de to air getting inside of the box ok then make sure you put sealant on the bolts where they go thru the fire wall and tighten it down firmly then reattach the hoses and you are done
      Hope this is very helpful for you
      Best regards Michael

      Jan 10, 2010 | Chevrolet El Camino Cars & Trucks

      2 Answers

      Smell antifreeze inside when car is running

      check for leaks outside the car around the radiator and hoses if nothing is found there you'll probably need a heater core

      Nov 18, 2009 | 2000 Pontiac Grand Am GT

      1 Answer

      Replacing heater core

      1. Disconnect the negative battery cable, then drain the radiator.
      CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by the ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.
      1. Remove the heater hoses from the core. The top hose connects to the water pump and the lower hose goes to the thermostat housing.
      2. Remove the cables and all electrical connections from the heater and defroster assembly.
      3. Remove the nuts from the core case studs located on the firewall.
      4. From inside the car, remove the case-to-firewall mounting screws and also the heater and defroster assembly.
      5. Remove the retaining springs and core.
      To install:
      1. Install the core and retaining spring, making sure the core-to-case sealer is in good shape.
      2. Install the heater and defroster assembly, then install and tighten the case-to-firewall mounting screws.
      3. Install the nuts to the core case studs on the firewall.
      4. Install the cables and engage all electrical connectors to the heater and defroster assembly.
      5. Engage the heater hoses to the core.
      6. Connect the negative battery cable, then refill the engine cooling system and check for leaks.

      Dec 06, 2008 | 1985 Chevrolet El Camino

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