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HOW DO CHANGE THE EVAPORATOR CORE ON A 1964 IMPALA

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  • Bob Pearson May 10, 2010

    IT HAS FACTORY AIR COND. LOOKS LIKE THE PASSENGER FENDER WELL WOULD HAVE TO BE REMOVED TO TAKE HOSES LOOSE. I DIDNT KNOW IF THE EVAPORTOR WOULD COME OUT UNDER THE FENDER ARE INSIDE THE CAR THANKS BOB

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  • Master
  • 1,297 Answers

Pretty simple....
1.) recover the refrigerant
2.) disconnect the lines
3.) R&R the evaporator
4.) vacuum the system for at least 30 minutes (1 hour advised)
5.) re-charge the a/c

unless you have a recovery system you will have to have steps 1 and 4 done by a shop

additionally, your system probably had R-12 and you'll need a lience to reinstall R-12 unless you are going to retrofit it to R-124a



Posted on May 10, 2010

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  • Chevrolet Master
  • 17,970 Answers

Is the heater core inside the cabin behind the glove box. Might try taking off the top of the dash and see if there are any brackets there. If all items are outside under the hood might look near the base of the windshield and see is there are any screws there. Might have to remove the windsheild wiper and possible the trim strip at the bottom of the windshield also. If you have a Haynes repair manual # 24045, I found this information on page 3-8.

Its possible that if you can find this document (Haynes), obtain pics to solve it. Evaporator Kit.

Hope helped.

Posted on May 10, 2010

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I have a 2001 Chevy Impala and last year it was blowing cold air from a.c. then all of a sudden it quit and started blowing hot air.we put freon in it but apparently it all leaked out.what is wrong with...


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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...


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-------------------------------
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.

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