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Can you split evaporator case to remove core - 1996 Ford F350 Crew Cab

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Yes you can, just reseal it with 3M strip chalk upon reasembly

Posted on Jul 04, 2010

Testimonial: "thout that you can. 91 ranger made the same way."


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How do I replace heater core?

Removal Procedure
  1. Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement .
  2. Remove the heater core case cover.
  3. Remove the heater core bracket and screw.
  4. Remove the heater core.
Removal Procedure
Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Remove the evaporator hose from the evaporator. Refer to Air Conditioning Evaporator Hose Assembly Replacement .
  4. Lower the vehicle.
  5. Remove the heater hoses from the heater core. Refer to Heater Hoses Replacement .
  6. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Remove the drain tube elbow from the evaporator block heater case plate.

Remove the nuts holding the heater case plate for the heater pipes. Remove the heater case plate and the seals for the heater pipes. Remove the nuts holding the heater case plate for the evaporator block. Remove the heater case plate and seal for the evaporator block. Remove the nut for the HVAC module assembly bracket. Lower the vehicle. Remove the instrument panel (IP) carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges, and Console. Remove the cross vehicle beam (tie bar). Remove the floor air duct from the HVAC module. Refer to Floor Air Outlet Replacement . Remove the air distribution duct. Refer to Air Distributor Duct Replacement .
Remove the daytime running lights (DRL) sensor wiring harness clip (1) from the HVAC module assembly. Disconnect the IP lamp dimmer switch electrical connector (2). Remove the wiring harness clips (3) from the HVAC module assembly bracket. Disconnect the vacuum source hose (4) from the vacuum tank.
If you have never done this before I suggest you take it to a ASE certified repair shop or the dealer .

Dec 27, 2015 | 2001 Chevrolet Malibu

1 Answer

How to remova an evaporator core on a 2006 scion xb

A 6 hr dealer job. Most of the dash needs to come apart and then split the evap core case. Don't forget to release the pressure.

Nov 05, 2015 | 2006 Scion xB

2 Answers

How do i fix the heater core on my ford taurus 1995

Hi there,

Remove heater/evaporator case. Remove vacuum source line from heater core tube seal. Remove seal from heater core tubes.
Remove heater core access cover screws. Remove access cover and seal from heater/evaporator case. Lift heater core and case seals out of heater/evaporator case.
If installing new heater core, transfer case seals to new core. Install heater core and seals into heater/evaporator case. Install heater core access cover on case. Install seal on heater core tubes. To complete installation, reverse removal procedure. Evacuate and charge A/C system. Refill cooling system.

  • Disconnect negative battery cable. Drain coolant from radiator. Gently pull instrument panel away from right side of dash panel.
  • Discharge A/C system using approved refrigerant recovery/recycling equipment. Disconnect heater hoses from heater core. Plug heater core tubes or drain coolant by blowing coolant from heater core using low pressure compressed air. Disconnect vacuum supply hose from inside engine compartment.
  • Disconnect A/C lines from evaporator core. Plug A/C lines and evaporator core tubes. Remove instrument panel assembly brace to evaporator case bracket screw. Remove assembly brace.
  • Remove floor register and rear floor duct from bottom of heater/evaporator case. Remove nuts securing heater/evaporator case to firewall. Remove 2 screws securing support brackets to cowl top panel. Carefully pull heater/evaporator case away from firewall. Remove heater/evaporator case.
  • To install, reverse removal procedure. Evacuate and charge A/C system. Refill cooling system.
Removal & Installation
  • Position front wheels in straight-ahead position. Disable air bag system. See AIR BAG RESTRAINT SYSTEM article in ACCESSORIES/SAFETY EQUIPMENT section. Disconnect negative battery cable. Remove steering column trim shrouds.
  • Disconnect all electrical connections from steering column switches. Remove cover from under steering column. Remove 4 bolts and reinforcement from under steering column. Disconnect parking brake release control motor from parking brake and ignition switch connector.
  • Disengage insulator retainer. Remove insulator. Remove 4 nuts and reinforcement below steering column. Remove 4 nuts securing steering column to instrument panel and lower column to front seat. Disconnect PRNDL cable (A/T models).
  • Ensure ignition switch is locked to prevent steering column from turning. Remove 4 instrument cluster retaining screws. Disconnect speed control cable and vehicle speed sensor (if equipped). Disconnect electrical connectors and remove instrument cluster. At steering column opening, remove one bolt securing instrument panel to brace. Remove one instrument panel brace bolt (below radio area).
  • Remove sound insulator under glove box by removing 2 push nuts securing insulator to studs on climate control case. Remove glove box door and compartment. Remove air cleaner housing, battery and battery tray. Disconnect wires of main wire loom in engine compartment. Disengage rubber grommet from firewall. Feed wiring into passenger compartment through hole in firewall.
  • Remove right and left kick panels. Disconnect wires from instrument panel at right and left kick panel sides. Remove screws on left and right sides of instrument panel.
  • Pull up to unsnap right and left speaker opening covers. Remove speaker covers. Working through steering column and glove box openings, reach under instrument panel and disconnect electrical connectors, vacuum hoses, A/C-heater control panel cables, and radio antenna cable.
  • Support instrument panel. Remove 3 screws attaching top of instrument panel to cowl top. Disconnect remaining wires. Remove instrument panel. To install instrument panel, reverse removal procedure.

Hope this helps...

Jan 17, 2011 | 1995 Ford Taurus

1 Answer

How do I get to the heater core on a 250 ford econoline

In order to change the heater core on most trucks you have to remove the Air Handling Unit (evaporator case) from under the dash. In most cases you have to remove the entire dash in order to get the case out. (the case is the big black thing under the instrument panel, mostly on the passenger side.) Im order to get the case out you have to remove the nuts from the bolts that go through the fire wall. Next you have to pump down the AC system and unhook the evap. core at the TXV (near firewall). The next step is to remove the heater core lines at the firewall. (ALL 3 of these are done in the engine caompartment.) Now is where you would remove the instrument panel, and the AC system duct work. After all that you should be able to get the Air Handling Unit out. once the caseis out you have to take out the screws that hold the center seam together, and whatever else may be in the way (actuator linkages, wireharnesses, etc, etc.) Once you have "split" the case you should simply be able to pull the heater core out and put in the new. Reverse the process to put back together. Hope this helps.

Jan 01, 2011 | 1993 Ford Econoline

2 Answers

I am wanting to change the heater core in my 2004 Suziki Forenza myself. I am looking for a maintenance manual for this model vehicle or someone with the knowledge of how the dash comes off.

you can go to any auto parts store and buy a haynes manual for your specific vehicle. they are based on a complete teardown of vehicle. the manuals are only about 20 to 25 dollars. have a good day !! ( then you will have it just in case something else goes wrong !!)

Dec 19, 2010 | Suzuki Forenza Cars & Trucks

1 Answer

Change evaporator 1996 cheve truck 1500 350

Removal & Installation To Remove:
  1. Disconnect the negative battery cable.
  2. Drain the coolant from the engine.
  3. Recover the refrigerant.
  4. Remove the glove compartment.
  5. Remove the floor air outlet.
  6. If equipped with a diesel engine, remove the powertrain control module.
  7. Remove the kick panel trim.
  8. Remove the blower motor.
  9. Remove the steering column.
  10. Tilt back the instrument panel assembly.
  11. Remove the coolant recovery reservoir from the engine compartment.
  12. Disconnect the heater hoses and the evaporator tube.
  13. Remove the accumulator.
  14. Remove the fasteners and the HVAC module assembly.
  15. Remove the cover plate on the bottom of the HVAC module.
  16. Remove the heater core and seal from the HVAC module.
  17. Remove the case cover from the HVAC module.
  18. Remove the evaporator core.
HVAC module mounting fastener locations gm-10-00-1003.gif

HVAC module components gm-10-00-1004.gif

To Install:
NOTE: If a new evaporator is being installed, add 3 fl oz (90 ml) of refrigerant oil to the new evaporator.
  1. Install the evaporator core.
  2. Install the case cover.
  3. Install the heater core and the seal.
  4. Install the cover plate on the bottom of the evaporator case to the HVAC module.
  5. Install the HVAC module in the vehicle.
  6. Install the accumulator.
  7. Connect the evaporator tube and heater hoses.
  8. Install the coolant recovery reservoir.
  9. Install the instrument panel.
  10. Install the steering column.
  11. Install the blower motor and cover.
  12. Install the kick panel trim.
  13. Install the powertrain control module and tray.
  14. Install the floor air outlet.
  15. Add coolant to the cooling system.
  16. Connect the negative battery cable.
  17. Evacuate and charge the A/C system.
  18. Check the system for leaks.
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Aug 14, 2010 | 1996 Chevrolet C1500

2 Answers

How do you replace the evaporator core for the a/c? on a 1994 gmc p/u truck, I've already have the dash out having promblems removing the duct work, what's next? or is there a maunal that will show me.

your instructions are on how to replace the condenser on a 1994 gmc sierra but the title says it is the directions for replacing an evaporator. please correct your title.

Aug 08, 2010 | 1994 GMC Sierra

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.
  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.


    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


The following is a general removal procedure of A/C evaporator core. The evaporator is removed differently from different vehicles.
For example, a 1994 Ford Taurus/Mercury Sable instructs you to, "Using a hot knife, cut the top of the air conditioning evaporator housing between the raised outline."

Use a hacksaw or a hot knife to cut the case. Reprinted with the permission of Ford Motor Company.
But a 1993 Ford Probe manual says to simply remove the blower motor and assembly screws before separating the case halves and removing the evaporator.

The following procedure assumes that access to the evaporator has been determined.
  • Recover the refrigerant.
  • Drain the radiator if the heater hose(s) has to be removed to gain access.
  • Remove the heater hose(s), if necessary.
  • Remove any wiring harness, heat shields, brackets, covers, and braces that may restrict access to the evaporator core.
  • Remove the liquid line at the thermostatic expansion valve (TXV) or fixed orifice tube (FOT).
  • Remove the suction line at the evaporator or accumulator outlet.
  • Gain access to the evaporator core as outlined in the service manual.
  • Lift the evaporator from the vehicle.
  • Drain the oil from the evaporator into a calibrated cup.
  • For replacement, reverse the preceding procedure. First, replace the oil with the same amount and type you previously drained.

Jan 10, 2009 | 1984 BMW 7 Series

1 Answer

Evaporator core removal

The case splits in engine compartment ...The right side of the case is what you need to remove..You have to remove bypass valve and aux valve there is one screw inside of vehicle lower left passenger footwell and 2 screws upper right of evap case and alot of small screws around perimiter that have to come out..

Jul 27, 2008 | 2000 Chevrolet Astro

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