Question about 2002 Chevrolet Silverado 1500HD

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HOW TO REMOVE HOSES FROM HEATER CORE - 2002 Chevrolet Silverado 1500HD

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Special tool that slides behind the fitting and releases the lock tabs. Can be purchased at most auto part stores.

Posted on Jul 23, 2009

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Posted on Jan 02, 2017

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1998 Oldsmobile Aurora heater core removal


Tools Required:
J 37097-A Hose Clamp Pliers

Remove or Disconnect

1. Drain cooling system.
2. Heater hoses from heater core.
3. Console assembly.
4. Trim sound insulator as necessary to allow removal of heater core cover.
5. Heater core cover from HVAC module.
6. Retaining straps from heater core.
7. Heater core.

Install or Connect

1. Heater core into HVAC module with attaching straps and screws.
2. Heater core cover and attaching screws.
3. Console assembly.
4. Heater hoses to heater core.
5. Fill cooling system.

Mar 01, 2017 | Oldsmobile Cars & Trucks

1 Answer

How to replace heater hose


2009-11-27_043351_98_chev_ven.gifHEATER CORE REPLACEMENT

TOOLS REQUIRED
J 38185 Hose Clamp Pliers

REMOVAL PROCEDURE

Drain the cooling system.
Remove the left wiper arm linkage nuts. Reposition the left wiper arm linkage for access.
Disconnect the vacuum hose from the brake booster and reposition.
Remove the air cleaner cover and intake tube.
Disconnect the throttle and cruise control cables from the TBI mounting bracket.
IMPORTANT: Disconnect the throttle and cruise control cables to prevent bending the cable housings.

Remove the transmission fluid filler tube.

Disconnect both of the heater hose clamps at the heater core using the J 38185.
Remove the heater hoses from the heater core.
Cap off the heater core pipes.
IMPORTANT: Cap off the heater core inlet and outlet pipes to prevent coolant spilling inside of the vehicle.

Remove the heater core cover.

Remove the heater core pipe retaining clamp screw.
Remove the heater core from the HVAC module.
INSTALLATION PROCEDURE

Install the heater core to the HVAC module.
Install the heater core pipe retaining clamp screw.
NOTE: Refer to Fastener Notice in Service Precautions.
See: Service Precautions\Vehicle Damage Warnings

Tighten
Tighten the screw to.1.6 N.M (14 lb in).

Install the heater core cover.

Install the heater hoses to the heater core.
Reposition the heater hose clamps to secure the hoses using the J 38185.
Install the transmission fluid filler tube.
Install the air cleaner cover and intake hose.
Connect the throttle and cruise control cables to the TBI mounting bracket.
Connect the vacuum hose to the brake booster.
Install the left wiper arm linkage.
Install the left wiper arm linkage nuts.
Tighten
Tighten the nuts to.5 N.M (44 lb in).
Fill the coolant.

Jun 26, 2014 | 2001 Chevrolet Venture

1 Answer

1999 ford Expedition heater core removal


If the hose is leaking at heater hose,maybe heater core is bad,here's a repair guide to the heater core and hose.

Dec 22, 2012 | 1999 Ford Expedition

1 Answer

How to replace the heater core to a chevy astro 2003


  1. Drain the engine coolant.
  2. Reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly. This is located underneath the dash on the passenger side.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.

Sep 05, 2011 | 2002 Chevrolet Astro

1 Answer

Diagram on how to replace heater core in 99 expedition


Removal & Installation 1997-2002 To Remove:
NOTE: Heater core must be vacuum leak tested before it is remove from vehicle if a heater core leak is suspected.
  1. Drain engine coolant.
  2. Remove instrument panel.
  3. For 5.4L (4V), if quipped, remove junction splash shield.
  4. For 5.4L (4V), if quipped, disconnect starter relay cable. ford-03-00-3579.gif

  5. For 5.4L (4V), if quipped, remove junction block bracket.
  6. Clamp inlet and outlet heater hoses.
  7. Disconnect heater hose from heater core by gently pressing it toward heater core.
  8. Remove A/C plenum demister adapter.
  9. Disconnect vacuum line.
  10. Remove 13 plenum chamber top screws.
  11. Remove blend door assembly from case.
  12. Remove heater core.
To Install:
NOTE: If needed, clean and lubricate coolant hoses with plain water.
ford-10-00-3098.gif

  1. Install heater core.
  2. Install blend door assembly to case.
  3. Install 13 plenum chamber top screws.
  4. Connect vacuum line.
  5. Install A/C plenum demister adapter.
  6. Connect heater hose to heater core.
  7. Release all clamps from inlet and outlet heater hoses.
  8. For 5.4L (4V), if quipped, install junction block bracket.
  9. For 5.4L (4V), if quipped, connect starter relay cable.
  10. For 5.4L (4V), if quipped, install junction splash shield.
  11. Install instrument panel.
  12. Refill engine coolant.
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Aug 21, 2010 | Ford Expedition Cars & Trucks

1 Answer

How to replace a heater core in a 2002 chevy astro van


Heater Core Removal & Installation To Remove:
  1. Drain the engine coolant.
  2. Release and reposition the outlet heater hose clamp at the heater core.
  3. Remove the outlet heater hose from the heater core.
  4. Release and reposition the inlet heater hose clamp at the heater core.
  5. Remove the inlet heater hose from the heater core.
  6. Remove the screws that retain the cover to the heater case assembly.
  7. Remove the straps that retain the heater core to the heater case assembly.
  8. Remove the heater core from the vehicle.
To Install:
  1. Installation is the reverse of removal.
  2. Refill the cooling system.
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Aug 12, 2010 | 2002 Chevrolet Astro

2 Answers

How to install a new top and bottom hvac heater hose fitting for a 2002 buick lesabre custom


The hoses are moved by turning them a few degree's, then pulling them off. See diagram below.

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Jun 19, 2010 | 2002 Buick LeSabre

1 Answer

What do i have to remove to replace the heater core in my 1991 chevy s10 with a 2.8 v6


Draining the Cooling System
  • Park the vehicle on a level surface. If the engine has been running allow it to cool completely.
  • Drain the cooling system. Remove the radiator cap from the radiator. Locate the petcock valve on the lower corner of the radiator. Place a waste oil collection pan underneath the petcock valve and turn it counterclockwise to open. Allow the cooling system to drain completely.
  • Label and remove the heater hoses from the heater core. The heater hoses will connect to the heater core in the engine bay, on the firewall, on the passenger side of the vehicle. Use either the Phillips or the flat-blade screwdriver to loosen the hose clamps that secure the hoses to the heater core. Then pull the hoses off the heater core.
Removing the Heater Core
  • Remove the heater core cover. Move to inside the passenger compartment. Locate the heater case. It will be bolted to the firewall, below the dash on the passenger side of the vehicle. Use an appropriate sized socket or wrench to remove the five screws that connect the heater core cover to the heater case, and remove the cover.
  • Remove the steel straps that secure the heater core to the heater case. Unscrew the four screws that connect the steel straps to the heater case using a socket or wrench and remove the straps.
  • Remove the heater core by pulling it out of the heater case.
Installing the Heater Core
  • Place the new heater core into position inside the heater case. Be sure to carefully guide the inlet and outlet tubes through the holes in the firewall.
  • Reinstall the heater core retaining straps, by reinstalling the four screws that secure them.
  • Place the heater core cover into position over the heater case and reinstall the five screws that secure it.

Refilling the Cooling System
  • Reconnect the heater hoses to the heater core. Slide the hoses onto the inlet and outlet fittings that extend through the firewall, and tighten the hose clamps.
  • Close the petcock valve on the lower corner of the radiator by turning it clockwise.
  • Refill the radiator with a 50/50 mix of antifreeze and water.
  • Reinstall the radiator cap onto the radiator.
  • Run the engine and visually inspect for leaks.
Good luck and take your time.

Dec 10, 2009 | 1991 Chevrolet S-10

1 Answer

1995 camaro hvac motor location


  1. Drain the engine coolant into a suitable container.
  2. Open the instrument panel glove compartment. Push in on the sides of the compartment to release it, allowing access to the heater core.
The heater core can be damaged if too much force is applied to the heater core pipes during hose removal.
  1. Remove the heater module screws and remove the heater module assembly cover. For vehicles equipped with A/C, remove the air conditioning evaporator temperature sensor assembly from the heater and A/C cover.
  2. Remove the heater core screw and clamp.
  3. Remove the hose pipe clamp screw and the hose pipe clamp. Clamp off the heater hoses.
0900c152800b8721.jpgFig. 1: Heater hose and pipe routing-3.4L engine 0900c152800b8722.jpgFig. 2: Heater hose and pipe routing-3.8L engine 0900c152800b8723.jpgFig. 3: Heater hose and pipe routing-5.7L engine
  1. Disconnect the heater hoses from the pipes.
  2. Remove the heater core by carefully pulling it towards you.
0900c152800b8724.jpgFig. 4: Exploded view of the heater core removed from the heater module assemblyTo install:
  1. Install the heater core and attach the heater hose assembly to the heater hose pipes. Note the following:
    1. Lubricate the heater core pipes with petroleum jelly for ease of installation and to assure a good seal.
    2. Be sure the seals around the heater pipes remain in place when installing.
    3. To verify that the seal is installed correctly, observe the seal from inside the engine compartment. If the seal has leaks, apply a sealer between the heater core pipes and the evaporator housing.
  2. Install the hose pipe clamp and the bolt/screw. Unclamp the heater hoses. Tighten the hose pipe clamp bolt/screw to 16 inch lbs. (1.8 Nm).
  3. Install the heater core clamp and screw. Tighten the screw to 16 inch lbs. (1.8 Nm).
  4. Install the heater module assembly cover and secure with the retaining screws. Tighten the screws to 18 inch lbs. (2 Nm).
  5. Connect the negative battery cable.
  6. Refill the cooling system. Operate the engine and check for leaks, add coolant if necessary.
  7. Install the instrument panel glove compartment.

Feb 03, 2009 | 1995 Chevrolet Camaro

4 Answers

Heater core


You have to pull the dash and all the lower fascia, then remove the box that houses the Heater Core Take the clamps off the heater hoses from the engine compartment side of the firewall and disconnect the heater hoses. Disconnect the bracket that holds the heater core in place from the inside of the passenger compartment (if present.) Carefully remove the heater core and discard it. Install a new heater core reversing the above steps.

Oct 18, 2008 | 1988 Chevrolet Cavalier Z24

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