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Removing ac evaporator

Have bottom cover off & heater core down, need to know how many screws hold shroud around evap. to expose the coil.

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  • Anonymous Mar 24, 2009

    I have the same problem, cant seem to figure out how to remove the plastic cover

  • yadayada
    yadayada May 11, 2010

    do u have the dash removed?

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3 Suggested Answers

  • 3600 Answers

SOURCE: removing evaporator in 93 chevy pickup

Did you connect the lines? and did you break loose the tar that holds itto the car and seals the holes for the pipe? You maya have to remove the outter core cover to getto the last screws to get it out.

Posted on Jul 18, 2009

c17hydro
  • 2984 Answers

SOURCE: I am doing a heater

Here is the removal and installation from start to finish...take a look and see where you are at in the steps...

  1. Disable the SIR system, as outlined in this section.
  2. Disconnect the negative battery cable.
  3. Properly drain the cooling system.
  4. Raise and safely support the vehicle.
  5. Detach the heater hoses from the heater core.
  6. Carefully lower the vehicle.
  7. Remove the instrument panel. For details, please refer to the procedure located in Section 10 of this manual.
  8. Remove the DERM with the attaching bracket.
  9. Detach the heater core cover.
  10. Unfasten the heater core mounting clamps, then remove the heater core.

fc77402.gif
Exploded view of the heater core and related components

To install:
  1. Position the heater core, then secure with the mounting clamps.
  2. Attach the heater core cover.
  3. Install the DERM with the attaching bracket.
  4. Install the instrument panel, as outlined in Section 10 of this manual.
  5. Raise and safely support the vehicle.
  6. Connect the heater hoses to the core.
  7. Carefully lower the vehicle.
  8. Properly refill the engine cooling system and check for leaks.
  9. Enable the SIR system.
  10. Connect the negative battery cable, then start the engine and check for proper system operation and/or leaks.

Posted on Dec 06, 2009

  • 1619 Answers

SOURCE: removing the ac evaporator behind the dash in a 1989 mercedes 300

Lots of write ups on benzworld.org and peachparts.com with pictures. i suggest give yourself 2 decent days to do it right.

Posted on May 21, 2010

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1 Answer

How to check and or replace evaporator core on2001 monte carlo?


To check it you need to pressurize the system run the compressor and then you can spray soapy water around it and see if you have a leak If you decide to replace the evap core for the ac be sure to replace the dryer as soon as you open the lines it will start to draw moisture and then the new system will fail or not put out cool air correctly. Unless you absolutely have to change the evap for the ac I suggest you leave it alone unless you have done this before or have someone to work with that know ac.

Jul 05, 2014 | 2001 Chevrolet Monte Carlo

1 Answer

Heater core replacement. Haynes manual and car have major differences.


Heater core is removed from inside the cabin. About a two hour job. The hardest part is removing the hoses in the engine bay.
In the cabin, remove the beauty panel under the glovebox; remove the glovebox, and move the HVAC controller. The heater housing, or cover is held with two screws, and the core is held with one screw (clamp).
Remove the HVAC module assembly. Refer to HVAC Module Assembly Replacement.
Remove the HVAC filter cover.
Remove the heater core/evaporator tube seals from the module.
Remove the heater core cover screws (1).
Remove the heater core retaining screws (1).
Remove the heater core retaining straps.
Remove the heater core.
Remove the rubber seals from the inlet/outlet pipes of the heater core.

Installation Procedure

Install rubber seals to the outlet/inlet pipes of the heater core.
Install the heater core to the module.
Install the heater core retaining straps.



Install the heater core retaining screws (1).
Install the heater core cover.



Install the heater core cover screws (1).



Install the heater core/evaporator tube seal from the module.
Install the HVAC filter cover.
Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.

This is the best that I can do for you, hope this works

May 19, 2011 | 1998 Cadillac DeVille

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.
Installation
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.

HEATER/EVAPORATOR CASE
Removal
  • 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.
INSTRUMENT PANEL
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

Bad evaporator coil


Its a big job, The heater box needs to come out, which entails discharging the AC, removing heater hoses, and hardware at the firewall. The complete dashboard needs to be removed and swung out of the way, steering column lowered , and heater box removed and disassembled for evap replacement ( simplified )

Jul 21, 2010 | 2002 Dodge Durango

1 Answer

Heater core 1987 lichon signature 5.o location


heater core is located on the front passenger side next to your ac evaporator assembly, your heater unit uses engine coolant water as a heater , the reason why you smell anti freeze because your core has a leak.
you can disassemble the unit if you have the right tool and by removing the front glove box and console panel to expose and give way to check that unit, it normally fastened by screws and a few bolts and nuts.

Apr 10, 2010 | 1987 Lincoln Town Car

1 Answer

Heater coil replacement


I just did mine last weekend and my my its a job I pulled the seats out to make it easier and if it has ac that will have to be discharged also. well start by removing your center console2_bing.gif then your radio then take off your dash speaker covers off and your defroster covers off you will see a bunch of bolts that hold on your dash under all them covers so go ahead and remove all the bolts then move down under the dash and there is a bolt on both corners of the dash that goes into the lower panel remove them I also removed the bolts the hold the steering wheel up so it can lower down alittle to give you more room then ontop of your gauge cluster you will see two screws that holds the gauge cover on remove them and in the cover you also have headlight switch and hazzered and rear defroster make sure you unplug the harnesses to them then you will have to start unhooking all the other plugs and wiring that plugs into things on dash then get the dash out oh the way and go under hood and remove heater2_bing.gif core hoses and you will need a specal tool to remove ac line then you will see one bolt next to the heater core hoses so go ahead and remove that then back to inside you will see the brackets that hold on heater Assembly onto the car2_bing.gif and go ahead and remove them and pull whole assembly out and you will see the heater core cover its held on with 4 screws so remove them and finally remove heater core and get some sealant to put around the new heater core this is a lot of work it took me about 12 hours to complete and get you a bucket because their is alot of nuts, bolts, clips so good luck

Jan 16, 2010 | 1988 Ford Mustang

1 Answer

How to put in a 1989 ford mustang heating core


I just did mine last weekend and my my its a job I pulled the seats out to make it easier and if it has ac that will have to be discharged also. well start by removing your center console then your radio then take off your dash speaker covers off and your defroster covers off you will see a bunch of bolts that hold on your dash under all them covers so go ahead and remove all the bolts then move down under the dash and there is a bolt on both corners of the dash that goes into the lower panel remove them I also removed the bolts the hold the steering wheel up so it can lower down alittle to give you more room then ontop of your gauge cluster you will see two screws that holds the gauge cover on remove them and in the cover you also have headlight switch and hazzered and rear defroster make sure you unplug the harnesses to them then you will have to start unhooking all the other plugs and wiring that plugs into things on dash then get the dash out oh the way and go under hood and remove heater core hoses and you will need a specal tool to remove ac line then you will see one bolt next to the heater core hoses so go ahead and remove that then back to inside you will see the brackets that hold on heater Assembly onto the car and go ahead and remove them and pull whole assembly out and you will see the heater core cover its held on with 4 screws so remove them and finally remove heater core and get some sealant to put around the new heater core this is a lot of work it took me about 12 hours to complete and get you a bucket because their is alot of nuts, bolts, clips so good luck

Jan 11, 2010 | 1989 Ford Mustang

1 Answer

This is ''pops'' moore again!trying to save a $ You helped me before on the firing order.went to a/c guy.he tested system,said evaporator was bad and needed to be changed.his est.was my first born and a...


I assume he used a leak tester and found a leak in the evap which is inside the plenum housing. Need to remove the plenum to get access to the evap. big job. If you are technical, you could remove the plenum assembly and let him replace the evap & then let you out the plenum back in. Then take back to have him evacuate and recharge system.
-------------------------------
SECTION 412-03: Air Conditioning 1999 Town Car Workshop Manual
REMOVAL AND INSTALLATION Evaporator Core Removal and Installation
NOTE: The evaporator core is not separately serviceable. It is serviced only with the evaporator core housing assembly.
NOTE: Installing a new suction accumulator is not required when repairing the refrigerant system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.
NOTE: If an evaporator core leak is suspected, the evaporator core must be leak tested before it is removed from the vehicle. For additional information, refer to Section 412-00 .
  1. Remove the evaporator core housing. For additional information, refer to Section 412-02 .
  1. Transfer the components from the old evaporator core housing to the new evaporator core housing
  1. Install the evaporator core housing. For additional
  2. information, refer to Section 412-02
---------------------------------------------------------------------------
Evaporator Core Housing Removal
  1. Disconnect the battery ground cable (14301).
  1. Recover the refrigerant. For additional information, refer to Section 412-00 .
  1. Drain the radiator. For additional information, refer to Section 303-03 .
  1. Remove the screws and the RH cowl vent screen.
  1. Disconnect the vacuum hoses and the wire harness connector from the evaporative emission canister purge valve (EVAP canister purge valve) (9C915).
  1. Remove the nuts and remove the evaporative emission canister purge valve.
  1. Remove the heater hoses from the heater core.
  1. Remove the screw and reposition the windshield washer fluid reservoir.
  1. Disengage the four wire harness retainers from the top of the RH fender apron.
  1. Remove the RH front wheel and tire.
  1. Remove the screws from the RH fender apron and remove the fender apron.
  1. Disconnect the wire harness connector from the A/C cycling switch (19E561).
  1. Disconnect the wire harness connector from the blower motor (18527).
  1. Disengage the wire harness connector from the retainer.
  1. Disconnect the evaporator to compressor suction line from the suction accumulator/drier (19C836). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. sxg~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: To prevent damage to the fitting and the tube, use a backup wrench when removing the suction accumulator/drier.
    Disconnect the suction accumulator/drier from the A/C evaporator core.
  1. Remove the clamp screw retaining the A/C accumulator mounting bracket to the A/C evaporator core housing and remove the suction accumulator/drier.
  1. Disconnect the condenser to evaporator tube from the A/C evaporator core (19860). For spring lock couplings disconnect and connect general procedure, refer to Section 412-00 .
  1. Remove the RH instrument panel insulator.
    • Remove the pushpins.
    • Disengage the courtesy lamp holder.
    • Disconnect the power point wire harness connector and remove the RH instrument panel insulator.
  1. Remove the in-car temperature sensor hose and elbow from the evaporator housing.
  1. Remove the nuts at the top of the evaporator housing.
  1. Remove the nuts at the bottom of the evaporator housing.
  1. Remove the screw and nut near the blower motor.
  1. Remove the screws.
  1. Separate the housing and remove the blower motor and A/C evaporator core.
  1. Disconnect the wire harness connector.
  1. Remove the evaporator core cover.

Apr 06, 2009 | 1999 Lincoln Town Car

2 Answers

Leaking heater core coolent smell through the a/c


The same thing happened to my '99. I found an 'off' brand heater core locally then seached the internet to find direction on how to install. I don't remember the link, but someone had posted pictures of the step by step. Although I must say the sticking point for me was removing the screw holding the heater core to the pipes coming from the front of the car then removing the core holder.
It took me a couple of hours, not really knowing what I was doing, but went real smooth. It's fixed for around $140! And NO MORE ANTIFREEZE SMELL!!

Aug 06, 2008 | 2001 Volvo V70

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