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How do I remove the a/c evaporator? Also the heater/cooling unit.

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The evaporator core is under the dash,follow your a/c lines into the firewall and you should be able to locate,the heater control unit is behind intrument cluster,pull out the old unit.









TIM............

Posted on Oct 23, 2010

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1 Answer

How to replace an heater core on a 2006 hyundai sonata


1. Disconnect the negative (-) battery terminal. 2. Recover the refrigerant with a recovery/ recycling/ charging station. 3. When the engine is cool, drain the engine coolant from the radiator. 4. Remove the expansion valve cover after loosening the nut (A).
kqre300c.gif 5. Remove the expansion valve (C) from evaporator core after loosening nuts. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
eqrf300d.gif 6. Disconnect the inlet (A) and outlet (B) heater hoses from the heater unit.
eqrf300e.gif
caution_icon_eng.gif Engine coolant will run out when the hoses are disconnected; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately. 7. Remove the crash pad. (Refer to BD group) 8. Remove the cowl cross member. (Refer to BD group) 9. Disconnect the connectors from the temperature control actuator, the mode control actuator and the evaporator temperature sensor, then remove the mounting nut and the mounting bolts. 10. Remove the heater & evaporator unit after loosening the mounting bolts.
[img src="http://www.srsplatform.com/webservices/Srs.WebPlatform.WebServices.FileManager.svc/POX/Get?project=OemContent&sessionTokenId=8f6d8ee1-e1a3-4f27-90e5-9d580930b025&file=OEDocs/9270/html/images/kqre300f.gif" border="0" > 11. Remove the blower unit from heater unit after loosening fixing screws on the connected part.
kqre300g.gif 12. Remove the side bracket (A) and heater core (B).
kqre300h.gif 13. Be careful that inlet and outlet pipes are not to be bent during heater core removal, and pull out the heater core. 14. Install the heater core in the reverse order of removal. 15. Install in the reverse order of removal, and note these items :
A. If you're installing a new evaporator, add refrigerant oil. B. Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for R-134a to avoid leakage. C. Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption. D. Do not spill the refrigerant oil on the vehicle ; it may damage the paint ; if the refrigerant oil contacts the paint, wash it off immediately. E. Apply sealant to the grommets. F. Make sure that there is no air leakage. G. Charge the system and test its performance. H. Do not interchange the inlet and outlet heater hoses and install the hose clamps securely. I. Refill the cooling system with engine coolant.

Jan 31, 2015 | 2006 Hyundai Sonata

1 Answer

How do i replace the heater core 1997 isuzu hombre


See me at website for images can only send one through this channel. www.autorepairhelp.us

Best Regards,

Master Tech Lee

HEATER BOX SHIELD
Image
Heater Box Heat Shield
Remove or Disconnect
1. Fasteners that retain heat shield to heater box assembly.
Image [ Heater Box Heat Shield
Install or Connect
1.Fasteners that retain heat shield to heater box assembly.
Tighten
-Bolts Screws to 2.2 N.m (25 lb in).
HEATER ASSEMBLY
Image ' Heater Hoses
Image ' A/C Evaporator Tube Assembly
Image ' Evaporator Core
Image ' Evaporator Core Assembly
Image ' Heater Assembly
Remove or Disconnect
1.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
2.Heater hoses. Refer to Heater Hoses.
3.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
4.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
5.Vacuum lines.
Important
-Clearly label vacuum line connections.
6.Heater assembly studs inside engine bay.
7.Blower motor resistor. Refer to Blower Motor Resistor.
8.Stud inside heater core housing.
-Stud is revealed by removing the blower motor resistor.
9.Rear case screws.
10.Heater assembly.
11.Seals.
Imagt
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Heater Hoses
A/C Evaporator Tube Assembly
Evaporator Core
Evaporator Core Assembly
Heater Assembly
Install or Connect
1.Seals.
2.Heater assembly.
3.Rear case screws.
4.Stud inside heater core housing.
Tighten
-Stud to 1.9 N.m (17 lb in).
5.Blower motor resistor. Refer to Blower Motor Resistor.
6.Heater assembly studs inside engine bay.
Tighten
-Studs to 1.9 N.m (17 lb in).
7.Vacuum lines.
8.Air inlet assembly. Refer to Air Inlet Assembly Replacement.
9.Instrument panel. Refer to Instrument Panel Replacement in Interior Trim.
10.Heater hoses. Refer to Heater Hoses.
11.Engine coolant. Refer to Draining and Filling Cooling System in Engine Cooling.
-Check the system for leaks.


Auto Repair Help US 699e5693-1e5b-4101-9428-b5c0b4e46f83.jpg

Sep 06, 2014 | 1997 Isuzu Hombre

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

Heater core where is it locoated at


  1. Set parking brake and disconnect battery ground cable.
  2. Discharge and recover system refrigerant. Refer to: "Service and Repair" See: Service and Repair
  3. Disconnect all engine compartment heater and air conditioning lines and vacuum hoses.
  4. Drain engine coolant and plug lines. Refer to: "Engine, Cooling and Exhaust : Cooling System : Service and Repair" See: Engine, Cooling and Exhaust\Cooling System\Service and Repair
  5. Remove instrument panel. Refer to: "Instrument Panel, Gauges and Warning Indicators : Instrument Panel : Service and Repair" . See: Instrument Panel, Gauges and Warning Indicators\Instrument Cluster / Carrier\Service and Repair
  6. Disconnect air conditioning hanger strap and temporarily reposition.
  7. Remove rubber condensate drain tube and four mounting nuts in engine compartment.
  8. Pull heater/air conditioning assembly to rear until unit studs clear dash panel, then drop unit down and remove from vehicle.
  9. Place heater/air conditioning assembly on suitable workbench, then remove screw at vacuum harness and feed harness through hole in cover.
  10. Remove thirteen screws from top cover, then remove top cover.
  11. Remove screw from heater core tube retaining bracket, then lift heater core out of unit.
  12. Remove evaporator core from unit.
  13. Reverse procedure to install.

Jan 10, 2011 | 1994 Plymouth Voyager

1 Answer

How to replace a heater core


Heater Core Removal & Installation Front To Remove:
  1. Make sure you have the anti-theft codes for the audio and the navigation system, and then write down the audio presets.
  2. Disconnect the negative cable from the battery.
  3. From under the hood, disconnect the heater valve cable from the heater valve. Turn the heater valve arm to the fully opened position.
  4. When the engine is cool, drain the engine coolant from the radiator.
  5. Disconnect the inlet heater hose and the outlet heater hose from the heater core.
  6. Remove the mounting nut from the heater unit. Take care not to damage or bend the fuel lines, the brake lines, and related parts.
  7. Remove the dashboard.
  8. Remove the evaporator.
  9. Remove the mounting bolts and remove the heater unit. Front heater unit honda-10-00-4128.gif

  10. Remove the self-tapping screws and the clamp.
  11. Carefully pull out the heater core so you don't bend the inlet and outlet pipes.
Front heater core honda-10-00-4129.gif

To Install:
  1. Using care, install the heater core to the heater unit and secure.
  2. Using care, install the heater unit and tighten mounting nuts and bolts to 7 ft-lb (10 Nm).
  3. Install the evaporator.
  4. Install the dashboard.
  5. Connect the inlet heater hose and the outlet heater hose to the heater core.
  6. Connect the heater valve cable to the heater valve.
  7. Refill the cooling system with engine coolant.
  8. Adjust the heater valve cable.
  9. Make sure that there is no coolant leakage.
  10. Make sure that there is no air leakage.
  11. Connect the negative battery cable.
  12. Perform the power window control unit resetting procedure.
  13. Enter the anti-theft codes for the audio and the navigation system, and then enter the audio presets.
Rear To Remove:
NOTE: The rear blower motor, the rear heater core, the blower screen, the rear blower resistor (heating/air conditioning system) and the rear power transistor (climate control system), the rear air mix control motor (climate control system) , the rear mode control motor and the rear expansion valve can be replaced without removing the rear heater-A/C unit.
  1. Remove the self-tapping screws and the clamp, and then remove the bolts and the rear evaporator lines with the rear expansion valve. If necessary, remove the rear expansion valve. Use a second wrench to hold the other fitting on the valve so the rear evaporator lines won't twist. Leave the first fitting loosely connected so you can use it to hold the valve while you loosen the second fitting.
  2. Remove the rear heater hoses.
  3. If necessary, remove the rear blower motor, the rear heater core, the blower screen, the rear blower resistor (heating/air conditioning system), the rear power transistor (climate control system), the rear air mix control motor and the rear mode control motor.
  4. Remove the self-tapping screws and the lower housing.
  5. Remove the self-tapping screws, and carefully separate the left upper housing from the right upper housing. Remove the rear heater core.
Rear evaporator assembly honda-10-00-4116.gif

To Install:
  1. Replace the rear heater core.
  2. Attach the heater hoses.
  3. Make sure no air is leaking from the left upper housing and the right upper housing fitting and from the upper housings and the lower housing fitting.
  4. Before reassembly, make sure that the rear air mix control linkage and door move smoothly without binding.
  5. Before reassembly, make sure that the rear mode control linkage and door move smoothly without binding.
  6. Reassemble the housing.
  7. After reassembly, make sure the rear air mix control motor runs smoothly.
  8. After reassembly, make sure the rear mode control motor runs smoothly.
  9. Refill the cooling system and make sure that there is no coolant leakage.
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Oct 16, 2010 | 2005 Honda Pilot

1 Answer

How To Replace The Heater Core In A 1997 Ford Thunderbird LX


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 blend door actuator.
  1. Slide heater core (18476) and seals from the A/C evaporator housing.
Installation
  1. Install the heater core in the A/C evaporator housing with the tube gasket on the outside of the case.
  1. Install A/C electronic blend door actuator as described.
  1. Position the heater core cover on the A/C evaporator housing. Install the four retaining screws.
  1. Refill the cooling system.


    1a302ce.gif




    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


    Hope this helps... Cobra

Jun 12, 2010 | 1997 Ford Thunderbird LX

1 Answer

Need to replace heater core on 96 tbird....I have Instrument panel out.....glove box out.....center 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).
Installation
  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
  2. 3e541cd.gif

      Feb 16, 2010 | 1996 Ford Thunderbird LX

      1 Answer

      Need to replace heater core. 91 Cavalier RS, 4 cyl., 2 litre


      1. Drain the cooling system. Refer to Draining and Filling Cooling System in Cooling System.
      2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
      3. Remove the bolt connecting evaporator lines to evaporator.
      4. Remove the evaporator lines from the evaporator.
      5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
      6. Disconnect the heater hoses from the heater core.
      7. Lower the vehicle.
      8. Remove the evaporator case drain tube.
      9. Remove the inside and outside module attaching bolts and the accumulator mounting bracket bolt.
      10. Remove the IP carrier.
      11. Remove the floor air outlet.
      12. Disconnect the wiring harness from the HVAC module assembly
      13. Disconnect the electrical connections at the following locations:
      1. Remove the HVAC module assembly screw (2) at the top of the module from the mounting bracket. (1).
      2. Disconnect the gray source vacuum line (1). IMPORTANT: DO NOT tilt HVAC module assembly or coolant may leak out.
      3. Remove MODULE from Vehicle

      Jul 28, 2009 | 1991 Chevrolet Cavalier

      2 Answers

      Kia Sportage heater core removal and replacement


      Hi there,

      Here are the steps to remove heater core

      1. Chock wheels. 2. Drain the engine coolant. Refer to Engine Cooling System. 3. Discharge and recover the refrigerant from the A/C system. Refer to Recovery/Evacuating/Charging in this section. 4. Remove the dash panel. Refer to Body. 5. Remove the Blower/Evaporator unit. Refer to Blower/Evaporator Unit in this section. 6. Disconnect the low pressure line from the evaporator outlet on the bulkhead. 7. Disconnect the high pressure line from the evaporator inlet on the bulkhead. 8. Disconnect the heater return hose from the heater core outlet tube connection. 9. Disconnect the heater inlet hose from the heater core inlet tube connection. 10. Disconnect the fresh air/recirculation control cable from the blower housing unit inlet duct. 11. Disconnect five connectors at the bottom of the blower housing unit. 12. Pull carpeting away from bulkhead to gain access to the hole cover plate. 13. Remove the four nuts retaining the hole cover plate. 14. Remove the hole cover plate. 15. Remove two mounting bolts at the top of the blower housing unit. d40e96a.jpg 16. Remove two nuts attaching the bottom of the blower housing unit to the bulkhead mounting studs. 17. Remove the blower unit from the vehicle. 18. Remove the temperature control cable from the heater unit servo. 19. Remove the two nuts from the mounting studs at the bottom of the heater unit. 20. Remove the top nut holding the heater unit to the bulkhead to the bulkhead mounting stud. 21. Remove the heater unit. Regards, Jeep Brainy

      Apr 15, 2009 | 1997 Kia Sportage

      1 Answer

      How to repair a 1996 kia sportage heating core


      Hi there,

      I hope below steps can help ...


      1. Drain the engine coolant. Refer to Engine Cooling System. 2. Discharge and recover the refrigerant from the A/C system. Refer to “Recovery/Evacuating/Charging” in this section. 3. Remove the dash panel. Refer Body. 4. Remove the blower/ evaporator unit. Refer to “Blower/Evaporator unit” in this section. 5. Disconnect the low pressure line from the evaporator outlet on the bulkhead. 6. Disconnect the high pressure line from the evaporator inlet on the bulkhead. 7. Disconnect the heater return hose from the heater core outlet tube connection. 8. Disconnect the heater inlet hose from the heater core inlet tube connection.




      d1a8fa0.jpg





      9. Disconnect the fresh air/recirculation control cable from the blower housing unit inlet duct. 10. Disconnect five connectors at the bottom of the blower housing unit. 11. Pull carpeting away from bulkhead to gain access to the hole cover plate. 12. Remove the four nuts retaining the hole cover plate. 13. Remove the hole cover plate. 14. Remove two mounting bolts at the top of the blower housing unit. 15. Remove two nuts attaching the bottom of the blower housing unit to the bulkhead mounting studs. 16. Remove the blower unit from the vehicle. 17. Remove the temperature control cable from the heater unit servo. 18. Remove the two nuts from the mounting studs at the bottom of the heater unit. 19. Remove the top nut holding the heater unit to the bulkhead to the bulkhead mounting studs.
      20. Remove the heater unit.




      Regards,
      Jeep Brainy

      Oct 25, 2008 | 1996 Kia Sportage

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