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Anonymous Posted on Oct 23, 2012
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Heater core removal on 1984 chev g 30 vad - 1984 Chevrolet Sportvan G30

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Anonymous

  • 85 Answers
  • Posted on Nov 24, 2008

SOURCE: How do you remove the heater core frm a '99 chev S10 Blazer ZR2?

i think the inner fender and right front wheel has to come off there are bolts from under the hood that have to come outgood luck.

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Anonymous

  • 169 Answers
  • Posted on Aug 29, 2009

SOURCE: 1999 chev 2500 heater core

not so quick hu--push squeeze & turn yor may have to replace when old its difficult

Anonymous

  • 708 Answers
  • Posted on Oct 01, 2009

SOURCE: 91 chevrolet s10 blazer heater core access?

not really. IT is under the dash on the passenger side. You should put some plastic down or pull the carpet or it will get soaked with anti freeze

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Greg Bernett

  • 2993 Answers
  • Posted on Oct 08, 2009

SOURCE: 1999 Chev Venture Heater core do I need to remove

The blower motor location can change from year-to-year. It can also change with the trim level of the vehicle. A vehicle that has front and rear climate controls may be configured differently than a vehicle that has front controls only. The following are two different repair procedures. One is for blower motors located and accessed in the engine compartment, the other is for blower motors mounted inside the vehicle.

REMOVAL AND INSTALLATION

Engine Compartment Mounted

  1. Disconnect the negative battery cable.
  2. Remove the engine air cleaner assembly.
  3. If necessary for clearance, remove the left hand wiper arm linkage.
  4. Detach the wire harness connector from the blower motor.
  5. Disconnect the motor cooling hose.
  6. Remove the blower motor assembly retaining screws
  7. Carefully pull the blower motor assembly out from the firewall.

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Kevin Rahme

  • 401 Answers
  • Posted on Nov 14, 2009

SOURCE: heater core blew

do you know what you are getting into
the WHOLE DASH has to come out right to the firewall
i can't give you step by step directions there is so much it takes us (GM TECHS) about 40 or more pages when we print off our service manual there are hidden bolts it's just a nasty job
sorry for the bad news

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0helpful
1answer

How do I replace a heater core on a 1984 Cadillac eldoreado Biarritz ,do I need to remove the dash
No need to remove the dash.
You need to remove the glove box. Remove the Programmer from the heater box. The heater box has studs going through the firewall attached with speed nuts on the UNDERHOOD side of the firewall . The nuts on the lower part of the box cannot be seen , so must be felt, and then removed. Place rags on both openings of heater core so as not to leak any coolant into the car. Heater box once unbolted must be artfully removed from UNDER the dashboard
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Mar 03, 2017 • 1984 Cadillac Eldorado
0helpful
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How do you change 1992 chev lumina heater core
if the coolant level is at the proper level and the thermostat is good then before you pull the heater core out you can try disconnecting the heater hoses and drain or blow out as much coolant out of the heater core then connect separate hoses to the spigots and fill the heater core with CLR and let it sit for an hour before draining then flush out with water and repeat if necessary this sometimes works and you won`t have to remove the heater core.
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Sep 15, 2014 • 1992 Chevrolet Lumina
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How do i take the heater core out? on a 1984 nissan 300 zx non turbo
YOU WILL NEED TO REMOVE THE DASHBOARD, THEN OPEN THE HEATER BOX AND TO ACCESS HEATER CORE, IT LOOKS LIKE A SMALL RADIATOR. ITS LABOR INTENSIVE
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Sep 11, 2011 • 1984 Nissan 300ZX
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How do you replace the heater core in a 1984 GMC 3500 camper
You will probably need new heater hose...first check heater hoses that run from engine to the
heater core......Most hoses will tear at the end where they are connected to the core and at the engine...First mark where each hose goes then drain coolant from system and remove both hoses...Take old hose's to parts store and get new hose's and clamps...They should be dryrotted
by the year of vehicle....It is easy to bend or break new core so be very careful when installing new core....After removing old hose's from core under hood you will know the location of the core....
remove screws under passenger side dash to remove core from inside of dash...very simple very easy....It looks like a tiny radiator with an in and an out spout...dont forget to mark where hoses
connect before removal.......Be sure and refill with new coolant/clamps/hoses because of age of vehicle...Both heater hose's that connect to the core are connected at the firewall on the passenger side of the engine...The core fits into the firewall dash and is connected to an input and an output hose...THIS IS EASY FOR BEGINNERS BUT BE CAREFUL WITH NEW CORE NOT TO BEND !!
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Jul 29, 2011 • 1984 GMC VanDura
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1answer

How to install heater core if 1985 cj 7 jeep with 151 cubic inch
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.
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Jan 06, 2011 • 1984 Jeep CJ7
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Heater wont warm up in a 2000 chev tahoe
Check that the heater core's two tubes that enter the firewall are getting hot. If they are, then you are having a blend door problem which will require disassembling the dashboard instruments to get at the vacuum motors that control the blend doors.

If the heater core is not getting hot at both tubes, then the following procedure outlines how to change the heater core out:

Removal & Installation






Heater core removal
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To Remove:



  1. Remove the HVAC assembly.
  2. Remove the heater core cover screws.
  3. Remove the heater core cover from the HVAC assembly.
  4. Remove the heater core gasket from the core.
  5. Remove the heater core from the HVAC module assembly.


To Install:



  1. Install the heater core to the HVAC module assembly.
  2. Install the heater core cowl gasket to the HVAC module assembly.
  3. Install the heater core cover and screws to the HVAC module assembly.
  4. Install the HVAC module assembly to the vehicle.


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Oct 29, 2010 • 2000 Chevrolet Tahoe
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1answer

1984 Jeep CJ7 heater core leaking. '93 inline 6 motor. Wrangler dash. How to I remove the core?
  1. Disconnect battery ground cable and drain cooling system.
  2. Disconnect heater core hoses.
  3. Disconnect damper door control cables.
  4. Disconnect blower motor electrical connector.
  5. Disconnect water drain hose and defroster hose.
  6. Remove nuts retaining heater housing assembly to instrument panel. Remove heater housing assembly by tilting heater downward to disengage it from air inlet duct and pulling toward rear of vehicle.
  7. Remove heater core from heater housing.
  8. Reverse procedure to install.
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Nov 17, 2009 • 1984 Jeep CJ7
1helpful
1answer

How to get access to a heater core for a 1985 GMC suburban K2500 350CID
This was the procces on an 86 chev 1/2 ton. Should be the same. Remove glove box. Undo manual controls for duct work. you'll see them there behind where the glove box was on top of the heater core housing. Bemove screws/bolts. Don't remember how many there are. Undo hose clamps in the engine compartment. Remove heater core.
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Oct 09, 2009 • 1985 GMC Suburban
2helpful
1answer

How do I change the heater core in my 1984 grand marquis? I dont have a manual
you have to remove the plenum case behind the dash. I will provide 94 gr marquis. don't have 84.



---------------------------------------------------------------------------------------
Section 12-03A: Air Conditioning System—Manual A/C-Heater 1994 Crown Victoria/Grand Marquis. Workshop Manual
REMOVAL AND INSTALLATION Heater Core Removal
  1. Remove the heater air plenum chamber assembly as outlined.
  2. Heater Air Plenum Chamber Removal
    1. Disconnect battery ground cable .
    1. Disconnect the heater water hoses from the heater core tubes. Plug the ends of the heater water hoses to prevent coolant loss.
    1. Plug heater core tubes securely to prevent coolant leakage from heater core during heater air plenum chamber removal.
    1. Remove three nuts located below the windshield wiper motor (17508) retaining the LH end of the heater air plenum chamber to the dash panel .
    1. Remove one nut retaining the upper LH corner of the A/C evaporator core housing to the dash panel .
    1. Remove LH and RH lower instrument panel insulators.
    1. Disconnect two vacuum supply hoses from vacuum source. Push grommet and vacuum supply hose into passenger compartment.
    1. Remove all instrument panel retaining screws and pull the instrument panel back as far as possible without disconnecting any wire harnesses.
    1. Loosen the RH door sill plate and remove the RH side cowl trim panel.
    1. Remove cross body brace and disconnect wiring harness from A/C electronic door actuator motor (19E616) and disconnect the sensor tube from the evaporator case connector.
    1. Disconnect the vacuum jumper harness at the multiple vacuum connector near the heater outlet floor duct.
    1. Disconnect the white vacuum hose from the heater and A/C air inlet duct door vacuum control motor.
    1. Remove two hush panels.
    1. Remove one plastic push fastener retaining the heater outlet floor duct to the LH end of the heater air plenum chamber . Remove LH screw and loosen RH screw on the rear face of the heater air plenum chamber and remove the heater outlet floor duct .
    1. Remove two nuts from the two studs along the lower flange of the heater air plenum chamber .
    1. Carefully move heater air plenum chamber rearward to allow heater core tubes and the stud at the top of the heater air plenum chamber to clear holes in the dash panel. Remove heater air plenum chamber from vehicle by rotating the top of the heater air plenum chamber forward, down and out from under the instrument panel . Carefully pull lower edge of instrument panel rearward as necessary while rolling the heater air plenum chamber from behind the instrument panel .
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  1. Remove the four retaining screws from the heater core cover (18B300) and remove the heater core cover from the heater air plenum chamber assembly.

    Heater Core Removal


    bd523c4.gif


    Item Part Number Description 1 390092-S2 Screw (2 Req'd) 2 18658 Heater Core Case Seal 3 18476 Heater Core 4 18570 Heater Dash Gasket 5 18471 Heater Air Plenum Chamber 6 18B300 Heater Core Cover
  1. Pull the heater core assembly from the heater air plenum chamber assembly.
Installation
  1. Carefully install heater air plenum chamber assembly into the heater air plenum chamber assembly. Visually check to ensure that core seal is properly positioned.
  1. Position the heater core cover and install the four retaining screws.
  1. Install the heater air plenum chamber assembly as outlined.
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Feb 27, 2009 • 1984 Mercury Grand Marquis
0helpful
1answer

How do you remove the heater core frm a '99 chev S10 Blazer ZR2?
i think the inner fender and right front wheel has to come off there are bolts from under the hood that have to come outgood luck.
Read full answer
Nov 24, 2008 • 2000 Chevrolet Silverado
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