Question about 1999 Plymouth Grand Voyager

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Evaporator core I need evaporator core I am disabled with asthma and need a/c I have a neighbor ready to help but need step by step directions where can I find them

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This is a very involved procedure! I just changed the evaporator core ($83 with shipping from Ebay) on my 1999 Plymouth Grand Voyager and it took me 10 hours. The quote from the repair shop was $800 - $1000 for labor alone! Parts that must be changed also are the receiver/drier (next to the radiator). Other parts that should be changed are the expansion valve (on the firewall) and all the O-rings. The system should be flushed and must be vacuumed down and serviced. It's also a good idea to remove the compressor, drain the oil, and look for any signs of damage - such as bits of teflon or a gray-black sludge. Don't forget to add oil to the system or you'll be needing a new compressor in no time. The oil capacity is 9 oz. and 34 oz. of R-134a.

I found this posting of photos and instructions and couldn't have changed the evap without them. Special thanks to the Dodge forum, Mr. Mahoney and Dodge Tech. Here's the link:

Some notes, as the instructions are somewhat ambiguos:

1. VERY IMPORTANT TIME SAVER: The steering column, instrument panel and dash all come out as a single unit! In the photos Mr. Mahoney disassembled way more than he had to. The instructions may be interpreted incorrectly and you'd be tempted to separate the steering column from the dash, or remove the instrument bezel, or the hvac controls. This is totally unnecessary! Just take your time and look at everything and check and double-check what needs removed/disconnected. Also, the step where it says to remove the nuts from the steering column at the die cast brake pedal support - those are the ones (4) that go forward to the bracket on the firewall, NOT the 4 nuts that go up to the dash! Again, the steering column comes out with the dash as a unit.

2. Some things left out of the steps: Disconnecting the parking brake light wire, disconnecting the blower fan wires, and removing the one hidden bolt from the bottom of the plenum. That bolt is near the floor, just the the left of center, and holds the bottom of the plenum to the firewall.

3. I found it much easier to get access to the engine side of the firewall by removing the alternator. This gives more room to get at the expansion valve and the 3 nuts that hold the plenum to the firewall.

4. Once you get the dash all the way out, and the plenum removed it's about 15 mins to half an hour to change the evaporator. Isn't that ironic?

I hope I haven't left anything out, and that this helps you. Let me know if there's anything else I can help with.

1999 Plymouth Grand Voyager. 178,000 miles and goin' strong!

Posted on Jun 12, 2009

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You will need a manual if hes never done one before. The whole dash has to come out to get to it.

Posted on May 30, 2009


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I need removal and installation proceedure of a/c evaporator for kia sephia with full details. please reply soon.

Its sais that steering wheel has to be removed,but actually its not necessary.The dashboardframehasto beremoved.Thatwill automaticallycome outwith sterring assemblyout.
For complete step by step procedure to replace Evap core.Click the link below:-----
This will help.

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How To Install a Heater Core in a '94 Eagle Vision ESI 3.3

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Heater core leaking through floor vents.

Bad heater core you will need to replace it. About a 2 hour job, very easy to do:

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.

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I have a 1992 olds 98 regency need a evaporator core to be taken out and install a new one.How can I get the schematic diagram to do the job. ...

in my experience finding specific directions on how to do that are nearly impossible to find due to the strict EPA regulations on the use of refrigerant. but when i replaced the evaporator core on my tahoe i found it helpful to go on to youtube and search how to remove the dash. once the dash is out disconect the lines going to the evaporator core and the heater core from the engine side of the firewall. from inside the vehicle remove all screws securing the heater box to the firewall. you have to search for one or two hidden screws. looking from the engine side may make them visible. the heater box should pull out easily if not you missed a screw. once out of the vechicle remove all screws hold the box halves together, mine had about fifteen going all the way around it. open it up remove the evaporator core, clean any dirt, leaves etc. out of the box. replace core and reinstall. honestly not a very difficult job, but it is time consuming. hope this helps.

Apr 08, 2011 | 1992 Oldsmobile Ninety Eight Regency

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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...

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1 Answer

Replacing heater core in 03 dodge ram pick up truck 4 door with 5.7 engine


STEP 1 Disconnect and isolate the battery negative cable.

STEP2 Remove the instrument panel. STEP 3. Recover the refrigerant from the refrigerant system,

step 4 Disconnect the liquid line refrigerant line fitting from the evaporator inlet tube. Install plugs in, or tape over all of the opened refrigerant line fittings.

step 5 Disconnect the accumulator inlet tube refrigerant line fitting from the evaporator outlet tube.Install plugs in, or tape over all of the opened refrigerant line fittings.

step 6 Drain the engine cooling system.

STEP 7 Disconnect the heater hoses from the heater-tubes.Install plugs in, or tape over the opened core tubes. Remove the Powertrain Control Module (PCM) from the dash panel and set it aside, but do not unplug the PCM wire harness connectors.

STEP 8 Remove the nuts from the heater-A/C housing mounting studs on the engine compartment side of the dash panel.

Remove the nuts that secure the heater A/C housing to the mounting studs on the passenger compartment side of the dash panel Pull the heater A/C housing rearward far enough for the mounting studs and the evaporator condensate drain tube to clear the dash panel holes. Remove the heater A/C housing from the vehicle. STEP 10
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A/C Evaporator Core Orifice The A/C evaporator core orifice (19D990) should be replaced whenever the A/C compressor (19703) is replaced for lack of performance (internal damage). The A/C evaporator core orifice, located in the condenser to evaporator tube (19835), cannot be serviced in detail as a component of the line. If replacement is necessary, follow the procedure outlined for Liquid Line Removal and Installation. An orifice tube replacement service kit may be used as an optional service procedure. Refer to Section 12-00 for information regarding the use of an A/C Evaporator Core Orifice Replacement Kit E5VY-19D695-A.
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  1. Discharge A/C refrigerant system. Refer to System Discharging and Recovery as outlined.
  1. Remove condenser to evaporator tube (19835) from vehicle.
  1. Locate A/C evaporator core orifice (19D990) by three indentations or a circular recess in metal portion of the condenser to evaporator tube.

    A/C Evaporator Core Orifice Location
  1. Note angular position of ends of condenser to evaporator tube so that it can be reassembled in correct position.
  1. Cut a 63.5 mm (2.5 inch) section from condenser to evaporator tube at A/C evaporator core orifice location. Do not cut closer than 25.4 mm (1 inch) from start of a bend in tube.

    A/C Evaporator Core Orifice Section Removed From the Liquid Line
  1. Remove contaminants from the two pieces of the condenser to evaporator tube.
  1. NOTE: The inlet half of the condenser to evaporator tube will be positioned against the A/C evaporator core orifice tabs when correctly assembled.

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    A/C Evaporator Core Orifice Kit Disassembled Components

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