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How to remove heater core on Chevrolet Monte Carlo?


Removal & Installation


  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. If equipped with a 3.1L engine, remove the air cleaner and duct assembly.
  4. If equipped with a 3.8L engine, remove the fuel injector sight shield by performing the following procedures:
    1. Clean the area around the oil filler cap/tube assembly location.
    2. Rotate the oil filler cap/tube assembly counterclockwise from the valve cover.
    3. Lift the fuel injector sight shield up at the front and slide it from the rear engine bracket.
    4. Reinstall the oil filler cap/tube assembly in the valve cover.
      CAUTION
      Before draining the cooling system, allow the engine to cool to relieve the systems internal pressure and to avoid scalding coolant.


  5. Drain the cooling system by performing the following procedure:
    1. Raise and safely support the front of the vehicle.
    2. Remove and clean the coolant recovery tank.
    3. Place a 2 gallon pan under the radiator to catch the coolant.
    4. At the bottom of the radiator, open the drain valve and drain the coolant to a level lower than the heater core.
    5. Remove the radiator cap and open the air bleed screw (2-3 turns) located on top of the thermostat housing.
    6. After sufficient coolant has been drained from the system, close the drain valve.
      CAUTION
      Engine coolant is a hazardous waste; it should be stored for reuse or submitted for recycling. NEVER dispose of it by dumping it into the environment.


  6. Disconnect and plug the heater hoses at the heater core.
  7. If equipped, remove the lower center console by removing or disconnecting the following:

    Cigarette lighter
    Automatic transaxle shift handle
    Upper console trim plate from the front floor console by unsnapping it
    Electrical connectors from the upper console trim plate and remove the trim plate
    CD storage compartment from the front floor console by unsnapping it
    Raise the front floor console armrest and remove the compartment mat
    Console-to-chassis bolts and screws
    Electrical connectors from the console and remove the console from the vehicle

  8. Remove the lower instrument panel lower compartment by removing or disconnecting the following:

    Lower right instrument panel insulator
    Compartment-to-panel bolts and screws, from under the instrument panel compartment
    Instrument panel compartment door screws and the door
    Instrument panel compartment screws and plastic clips; then slide the compartment from the instrument panel
    Electrical connector from the compartment
    Ashtray and bracket, if necessary
    Lower heater duct
    Heater core cover and discard the cover seals
    Heater core mounting clip and bracket
    Heater core

    Click image to see an enlarged view
    Fig. View of the radiator drain valve-Century, Grand Prix, Intrigue, Lumina, Monte Carlo and Regal


    Click image to see an enlarged view
    Fig. View of the fuel injector sight shield-Century, Grand Prix, Intrigue, Lumina, Monte Carlo and Regal


    Click image to see an enlarged view
    Fig. Exploded view of the instrument panel-Century, Grand Prix, Intrigue, Lumina, Monte Carlo and Regal


    Click image to see an enlarged view
    Fig. View of the heater core-Century, Grand Prix, Intrigue, Lumina, Monte Carlo and Regal


To install:
  1. Install and connect the following:

    Heater core in the vehicle
    Heater core mounting clip and bracket
    New seals on the heater core cover
    Heater core cover and torque the bolts to 13 inch lbs. (1.5 Nm)
    Lower heater duct, if removed
    Ashtray and bracket, if removed

  2. Install the lower instrument panel lower by installing or connecting the following:

    Electrical connector to the compartment
    Slide the compartment into the instrument panel; then, secure it with screws and plastic clips
    Instrument panel compartment door and screws
    Compartment-to-panel bolts and screws, located under the instrument panel compartment
    Lower right instrument panel insulator

  3. If equipped, install the lower center console install or connect the following:

    Console in the vehicle and connect the electrical connectors
    Console-to-chassis bolts and screws, tighten in sequence beginning at the front right and continue in a clockwise order to 106 inch lbs. (12 Nm)
    Armrest compartment mat and lower the front floor console armrest
    C/D storage compartment into the front floor console
    Electrical connectors to the upper console trim plate and snap the trim plate onto the console
    Automatic transaxle shift handle and the cigarette lighter
    Heater hoses to the heater core and secure with the clamps

  4. Refill the cooling system by performing the following procedure:
    1. Close the radiator drain valve.
    2. If the air bleed screws (located at the top of the thermostat housing) is closed, open it by turning it 2-3 turns.
    3. Slowly add coolant until it reaches the radiator neck.
    4. Wait for 2 minutes and recheck the coolant level; then, add more coolant if necessary.
    5. Fill the coolant reservoir to the COLD mark.
    6. Close the air bleed screw.
      WARNING
      Do not over-tighten the air bleed screw for it is made of brass.

    7. Install the radiator cap and make sure that the arrows align with the overflow tube.

  5. If equipped with a 3.8L engine, install the fuel injector sight shield by performing the following procedures:
    1. Remove the oil filler cap/tube assembly from the valve cover.
    2. Slide the fuel injector sight shield into the rear engine bracket and lower it into place.
    3. Reinstall the oil filler cap/tube assembly in the valve cover. Twist it clockwise to lock the detent on the tube into the notch in the valve cover.

  6. If equipped with a 3.1L engine, install the air cleaner and duct assembly.
  7. Connect the negative battery cable.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Drain the engine coolant into a clean container for reuse.
  4. On Grand Prix or Regal equipped with a 3.1L engine, remove the air cleaner and duct assembly.
  5. On Grand Prix or Regal equipped with a 3.8L engine, remove the fuel injector sight shield.
  6. Remove or disconnect the following:

    Lower floor console, if equipped
    Both instrument panel insulators
    Heater core outlet cover screws and the outlet cover
    Heater core cover screws and the cover
    Heater core seals. Discard the seals
    Heater core outer seal. Discard the seal
    Heater core line clamp screw, the retaining clamp and the pipe retainer clamp screw
    Heater core from the lower case
    Heater core lower, center, upper and side seals from the lower heater core case. Discard the seals

    Click image to see an enlarged view
    Fig. View of the heater core outlet cover-Grand Prix, Intrigue and Regal


    Click image to see an enlarged view
    Fig. View of the heater core cover-Grand Prix, Intrigue and Regal


    Click image to see an enlarged view
    Fig. Location of the heater core cover seals-Grand Prix, Intrigue and Regal


    Click image to see an enlarged view
    Fig. View of the heater core outer seal-Grand Prix, Intrigue and Regal


    Click image to see an enlarged view
    Fig. View of the heater core-Grand Prix, Intrigue and Regal


    Click image to see an enlarged view
    Fig. View of the heater core lower, center, upper and side seals of the lower heater core case-Grand Prix, Intrigue and Regal


To install:
  1. Install or connect the following:

    New heater core lower, center, upper and side seals to the lower heater core case
    Heater core to the lower case
    Pipe retainer clamp screw, the retaining clamp and the heater core line clamp screw
    Heater core outer seal
    Heater core seals
    Heater core cover and the outlet cover screws, then, tighten the screws to 13 inch lbs. (1.5 Nm)
    Heater core outlet cover and the outlet cover screws, then, tighten the screws to 13 inch lbs. (1.5 Nm)
    Both instrument panel insulators
    Lower floor console, if equipped

  2. On Grand Prix or Regal equipped with a 3.8L engine, install the fuel injector sight shield.
  3. On Grand Prix or Regal equipped with a 3.1L engine, install the air cleaner and duct assembly.
  4. Refill the engine cooling system.
  5. Connect the negative battery cable.
  6. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. Drain the engine coolant into a clean container for reuse.
  4. On Grand Prix or Regal equipped with a 3.8L engine, remove the fuel injector sight shield.
  5. Remove or disconnect the following:

    Lower floor console, if equipped
    Both instrument panel insulators
    Heater core outlet cover screws and the outlet cover
    Heater core cover screws and the cover
    Heater core seals. Discard the seals
    Heater core outer seal. Discard the seal
    Heater core line clamp screw, the retaining clamp and the pipe retainer clamp screw
    Heater core from the lower case
    Heater core lower, center, upper and side seals from the lower heater core case. Discard the seals

    Click image to see an enlarged view
    Fig. View of the heater core outlet cover-Grand Prix


    Click image to see an enlarged view
    Fig. View of the heater core cover-Grand Prix


    Click image to see an enlarged view
    Fig. Location of the heater core cover seals-Grand Prix


    Click image to see an enlarged view
    Fig. View of the heater core outer seal-Grand Prix


    Click image to see an enlarged view
    Fig. View of the heater core-Grand Prix


    Click image to see an enlarged view
    Fig. View of the heater core lower, center, upper and side seals of the lower heater core case-Grand Prix


To install:
  1. Install or connect the following:

    New heater core lower, center, upper and side seals to the lower heater core case
    Heater core to the lower case
    Pipe retainer clamp screw, the retaining clamp and the heater core line clamp screw
    Heater core outer seal
    Heater core seals
    Heater core cover and the outlet cover screws, then, tighten the screws to 13 inch lbs. (1.5 Nm)
    Heater core outlet cover and the outlet cover screws, then, tighten the screws to 13 inch lbs. (1.5 Nm)
    Both instrument panel insulators
    Lower floor console, if equipped

  2. On Grand Prix or Regal equipped with a 3.8L engine, install the fuel injector sight shield.
  3. Refill the engine cooling system.
  4. Connect the negative battery cable.
  5. Operate the engine to normal operating temperatures; then, check the climate control operation and check for leaks.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect the negative battery cable.
  3. If equipped with a 3.8L engine, remove the fuel injector sight shield by performing the following procedures:
    1. Clean the area around the oil filler cap/tube assembly location.
    2. Rotate the oil filler cap/tube assembly counterclockwise from the valve cover.
    3. Lift the fuel injector sight shield up at the front and slide it from the rear engine bracket.
    4. Reinstall the oil filler cap/tube assembly in the valve cover.
      CAUTION
      Before draining the cooling system, allow the engine to cool to relieve the systems internal pressure and to avoid scalding coolant.


  4. Drain the cooling system by performing the following procedure:
    1. Raise and safely support the front of the vehicle.
    2. Remove and clean the coolant recovery tank.
    3. Place a 2 gallon pan under the radiator to catch the coolant.
    4. At the bottom of the radiator, open the drain valve and drain the coolant to a level lower than the heater core.
    5. Remove the radiator cap and open the air bleed screw (2-3 turns) located on top of the thermostat housing.
    6. After sufficient coolant has been drained from the system, close the drain valve.
      CAUTION
      Engine coolant is a hazardous waste; it should be stored for reuse or submitted for recycling. NEVER dispose of it by dumping it into the environment.


  5. Disconnect and plug the heater hoses at the heater core.
  6. If equipped, remove the lower center console by removing or disconnecting the following:

    Cigarette lighter
    Automatic transaxle shift handle
    Upper console trim plate from the front floor console by unsnapping it
    Electrical connectors from the upper console trim plate and remove the trim plate
    CD storage compartment from the front floor console by unsnapping it
    Raise the front floor console armrest and remove the compartment mat
    Console-to-chassis bolts and screws
    Electrical connectors from the console and remove the console from the vehicle

  7. Remove the lower instrument panel lower compartment by removing or disconnecting the following:

    Lower right instrument panel insulator
    Compartment-to-panel bolts and screws, from under the instrument panel compartment
    Instrument panel compartment door screws and the door
    Instrument panel compartment screws and plastic clips; then slide the compartment from the instrument panel
    Electrical connector from the compartment
    Ashtray and bracket, if necessary
    Lower heater duct
    Heater core cover and discard the cover seals
    Heater core mounting clip and bracket
    Heater core

    Click image to see an enlarged view
    Fig. View of the radiator drain valve-Grand Prix, Impala, Monte Carlo


    Click image to see an enlarged view
    Fig. View of the fuel injector sight shield-Grand Prix, Impala, Monte Carlo


    Click image to see an enlarged view
    Fig. Exploded view of the instrument panel-Grand Prix, Impala, Monte Carlo


    Click image to see an enlarged view
    Fig. View of the heater core-Grand Prix, Impala, Monte Carlo


To install:
  1. Install and connect the following:

    Heater core in the vehicle
    Heater core mounting clip and bracket
    New seals on the heater core cover
    Heater core cover and torque the bolts to 13 inch lbs. (1.5 Nm)
    Lower heater duct, if removed
    Ashtray and bracket, if removed

  2. Install the lower instrument panel lower by installing or connecting the following:

    Electrical connector to the compartment
    Slide the compartment into the instrument panel; then, secure it with screws and plastic clips
    Instrument panel compartment door and screws
    Compartment-to-panel bolts and screws, located under the instrument panel compartment
    Lower right instrument panel insulator

  3. If equipped, install the lower center console install or connect the following:

    Console in the vehicle and connect the electrical connectors
    Console-to-chassis bolts and screws, tighten in sequence beginning at the front right and continue in a clockwise order to 106 inch lbs. (12 Nm)
    Armrest compartment mat and lower the front floor console armrest
    C/D storage compartment into the front floor console
    Electrical connectors to the upper console trim plate and snap the trim plate onto the console
    Automatic transaxle shift handle and the cigarette lighter
    Heater hoses to the heater core and secure with the clamps

  4. Refill the cooling system by performing the following procedure:
    1. Close the radiator drain valve.
    2. If the air bleed screws (located at the top of the thermostat housing) is closed, open it by turning it 2-3 turns.
    3. Slowly add coolant until it reaches the radiator neck.
    4. Wait for 2 minutes and recheck the coolant level; then, add more coolant if necessary.
    5. Fill the coolant reservoir to the COLD mark.
    6. Close the air bleed screw.
      WARNING
      Do not over-tighten the air bleed screw for it is made of brass.

    7. Install the radiator cap and make sure that the arrows align with the overflow tube.

  5. If equipped with a 3.8L engine, install the fuel injector sight shield by performing the following procedures:
    1. Remove the oil filler cap/tube assembly from the valve cover.
    2. Slide the fuel injector sight shield into the rear engine bracket and lower it into place.
    3. Reinstall the oil filler cap/tube assembly in the valve cover. Twist it clockwise to lock the detent on the tube into the notch in the valve cover.

  6. Connect the negative battery cable.

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For more car related problem troubleshooting:---
This are the sections, you can go through and click the link to read its troubleshooting.
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The car will not start?

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Car will not crank?

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Car has no spark?

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How to troubleshoot car battery?

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How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

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How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

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car will turn over but will not start?

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The Brake Indicator Light Stays On dash of car?

The ABS and Traction Control Lights stays ON dash of car?

Check Engine Light On car?

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How to replace Interior Lights on car?

Car lights not working, even after replacing the bulb/lamp?

Click this link below:--
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How to replace head lights on car?

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How to replace Parking, turn, and Brake Lights on car?

How to replace power window motor in car?

How to test relays on car?

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How to troubleshoot Engine Misfires?

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The spark plug firing order for car?

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Where is the Thermostat located in car?

How to recharge AC on Auto/Truck/car?

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How to trouble shoot speedometer?
To Order car parts online:--To get heavy discount on car parts .Click this link below:----

How to Replace Coil Springs?

How to Replace an Oil Pan Gasket?
How to Replace a Fuel Injector
How to Replace a C.O.P. Type Ignition Coil?
How to Replace a Fuel Pressure Regulator?
How to Replace a Fuel Pump?

How to Replace a Rear Lift Gate Locking Mechanism?

How to Clean a Fuel System

How to Replace an Ignition Coil

How to Replace a Windshield

How to Replace a Mass Air Flow Sensor

How to Replace a Rear Distance Sensor

How to Replace a Muffler

How to Replace an Engine

How to Replace an Intake Manifold Gasket

How to Replace an Oil Pump

How to Lubricate a Brake Pedal Linkage ?

How to Replace a Windshield Wiper Motor

How to Replace a Distributor Cap

How to Replace a Door Weather Stripping

How to Replace a Freeze Plug

How to Replace a Head Gasket

How to Replace a Heater Core

How to Replace Spark Plugs?

How to Replace a Rear Axle Bearing?

How to Replace a Front Bumper Cover

How to Replace a Manual Transmission

How to Replace a Headlight Bulb

How to Replace a Headlight Switch

How to Replace Windshield Wiper Blades

How to Replace a Cooling Fan

How to Replace a Catalytic Converter

How to Replace an Engine Mount

How to Replace a Fog Light Assembly

How to Change Engine Oil and Filter

How to Replace a Power Seat Switch

How to Replace a Rear Main Seal

How to Repair a Defroster Grid

How to Replace an AWD Transfer Case

How to Replace a Plastic License Plate Bracket?

How to Replace a Power Seat Motor

How to Replace Power Steering Fluid

How to Replace a Power Window Switch

How to Replace a Quarter Glass Panel?

How to Pressure Test a Radiator and Cap

How to Replace a Radiator

How to Repair a Hood.

How to Replace an Energy Absorber

How to Replace Heater Core Hoses

How to Replace a Thermostat.
How to Rotate Tires.

How to Replace Wheel Lug Nuts

How to Replace a Tire Valve Stem

How to Change a Flat Tire

How to Replace Leaf Springs

How to Replace a Heater Control Valve

How to Replace Transmission Cooler Lines

How to Replace an Ignition Control Unit

How to Replace a Brake Hose

How to Replace a Transfer Case Rear Output Seal

How to Replace a Seat Belt and Seatbelt Retractor

How to Replace a Power Steering Rack

How to Bleed Brakes with a Tool

How to Replace a Tail Light Bulb

How to Check Automatic Transmission Fluid Level

How to Change Automatic Transmission Fluid and Filter

How to Replace Vacuum Hoses

How to Replace an Air Intake Boot

How to Replace a Valve Cover Gasket

How to Replace a Water Pump

How to Replace a Windshield Wiper Switch

How to Replace Window Run Channel Seals

How to Replace a Window Regulator

How to Balance a Tire and Wheel

How to Replace a Window Motor
How to Adjust a Hood Release Latch?

How to Replace a Radiator Support

How to Replace a Rear Pinion Seal.

How to Replace Battery Cables

How to Replace a Proportioning Valve

How to Replace an Upper Radiator Hose

How to Replace a Lower Radiator Hose

How to Replace a Timing Belt?

How to Check for Loose or Worn Suspension

How to Check for Loose Steering System

How to Replace an Oil Pressure Switch (Sensor)

How to Replace a Fender Liner or Splash Shield

How to Replace a Hood Insulator

How to Replace a Rear Differential.

How to Repair a Hood Hinge

How to Replace a Brake Pedal Return Spring

How to Replace a Door Shell.

How to Replace a Transfer Case Front Output Seal

How to Replace a Hood Latch/Lock Assembly

How to Replace a Lift Gate Strut

How to Replace Mud Flaps (Mud Guards)

How to Check Differential Oil Leaks and Replace Oil.
How to Replace a Mirror

How to Replace a Transfer Case Shift Linkage

How to Replace a Transmission Mount

How to Replace a U-Joint

How to Replace a Washer Tank

How to Replace an A/C Line or Hose

How to Replace a Heater and A/C Blower Motor

How to Replace an ABS Control Unit

How to Perform a Brake Adjustment

How to Replace an Alternator Belt

How to Replace an Emblem

How to Replace an Exhaust Manifold Gasket

How to Replace a Tail Pipe

How to Replace Shock Absorbers

How to Replace a Strut Assembly

How to Replace a Driveshaft

How to Replace a Wheel Cylinder

How to Replace a Hood

How to Replace a Brake Disc (Rotor)

How to Replace a Metal License Plate Bracket

How to Replace a Power Steering Pump

How to Perform a Basic Engine Tune-Up

How to Perform a Basic Engine Tune Up-Oil Change

How to Perform a Basic Engine Tune Up-Spark Plug and Wire Change

How to Replace a Distributor Cap and Rotor ?

How to Repair a Valance

How to Replace a Turn Signal Switch

How to Replace a Plastic Bumper Cover

How to Replace a Parking Brake Cable

How to Replace Windshield Wiper Blade Refills

How to Replace a Corner Light

How to Replace a Bumper Bracket or Side Support

How to Replace a Washer Pump.

How to Replace a Grille

How to Replace a Locking Hub

How to Replace a Fender

How to Replace a Power Steering Hose

How to Replace a Tailgate

How to Replace a Soft Top

How to Replace a Carburetor

­

How to Replace a Bumper Trim

How to Replace Trunk Strut

How to Replace a Front End Cover

How to Replace a Front Pipe

How to Replace an Antenna Mast

How to Replace a Side Marker Light Assembly

How to Install a Carpet on car?

How to Replace a Spoiler

How to Replace a Mirror Glass on car?
How to Replace a Step Bumper?

How to Replace a Door Lock

How to Replace a Throttle Body

How to Replace a Throttle Position Sensor

How to Replace a Grille Insert

How to Replace a Fan Shroud Assembly

How to Replace an Engine Splash Shield

How to Replace a Turn Signal Light Assembly

How to Replace a Headlight Assembly

How to Replace a Park Light Assembly

How to Replace an Expansion Tank

How to Replace an Exhaust System

How to Replace a Fender Trim

How to Replace a Headlight Door

How to Replace a Fan Shroud

How to Replace a Harmonic Balancer

How to Replace a Header Panel

How to Replace a Fuel Tank

How to Replace a Fuel Tank Cap

How to Replace a Distributor

How to Replace an EGR Valve

How to Replace an Oxygen Sensor

How to Replace an Ignition Wire Set

How to Replace a Tail Light

How to Replace a Door Handle

How to Replace a Hood Strut

How to Replace Tail Light Assembly

How to Replace a Front Bumper

How to Replace a Fuel Pump Assembly

How to Replace an Axle Assembly

How to Replace a Tailgate Handle

How to Replace a Wheel Hub Assembly

How to Replace a Control Arm

How to Replace a Window Regulator with Motor

How to Replace a Headlight

How to Check the Brake Fluid Level

How to Replace a Parking Brake Switch

How to Replace a Blower Motor Resistor

How to replace frost plug on car?

Horn stopped working?

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Car is stuck in park and the shift will not move?

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Car slows down when it gets hotter?

Warning lights on and speedometer died?

Car won't rev past 1900 rpms?

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