Results 1 to 8 of 8

Thread: A/C expansion valve and Evaporator question/issue

  1. #1
    Garrett booster
    Join Date
    Sep 2014
    Location
    Ashley, Ohio
    Posts
    79

    A/C expansion valve and Evaporator question/issue

    Hello all. Have a question/problem on an 89 Lebaron. I have all new parts for the a/c including lines, compressor, dryer, condenser, and expansion valve. The evap core is original to my knowledge. But this is where it gets fun. The flange on firewall has recessed ports what look to accept “male”
    ends if you will from the expansion valve. Trouble is my expansion valve has the same recessed ports that need a male end for them. I have purchased several expansion valves including a NOS correct part number (supposed) and still no dice. When I look at a replacement a/c core it seems to have the “male” ends I would think are needed. Hopefully I can get a picture to work. Otherwise I hope this makes sense and wonder if anyone else out there has ideas??!! Thanks!




    - - - Updated - - -

    Ugh I can’t get photos to work and don’t seem to have the brain power to use them from the thread tool😵

    - - - Updated - - -


  2. #2
    Garrett booster
    Join Date
    Sep 2014
    Location
    Ashley, Ohio
    Posts
    79

    Re: A/C expansion valve and Evaporator question/issue

    Maybe photos will work now? First is the car as it is now. Second shows the “new” evaporator core I can buy. As a side note I have found some vendors selling evaporator cores with the ports just like current on my car. What am I missing??


    Sent from my iPhone using Tapatalk

  3. #3
    Garrett booster
    Join Date
    Sep 2014
    Location
    Ashley, Ohio
    Posts
    79

    Re: A/C expansion valve and Evaporator question/issue




    Sent from my iPhone using Tapatalk

  4. #4
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
    Join Date
    Aug 2008
    Location
    SoMd
    Posts
    6,178

    Re: A/C expansion valve and Evaporator question/issue

    That evaporator core does not look original, OE would have been a brass/copper unit. That appears to be an aluminum unit based on the flange your picture is showing.

    The rockauto unit is correct in the flange configuration.
    1994 Shadow Sedan. 2.2 N/A, A568 400,000 miles. "the science experiment"
    1987 Shelby CSX #418. Long term rebuild and restore ?

  5. #5
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
    Join Date
    Sep 2007
    Location
    SE Wisconsin
    Posts
    2,624

    Re: A/C expansion valve and Evaporator question/issue

    There should be round nylon inserts with the new expansion valve. The inserts press into those recesses and help hold the gasket in place.

  6. #6
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,838

    Re: A/C expansion valve and Evaporator question/issue

    Quote Originally Posted by 135sohc View Post
    That evaporator core does not look original, OE would have been a brass/copper unit. That appears to be an aluminum unit based on the flange your picture is showing.

    The rockauto unit is correct in the flange configuration.
    all of my oem evaporator cores in my k cars have been aluminum. oem heater cores are copper brass.

    and they have the female style hole just like that. the expansion valve that i got came with the nylon inserts to align the gasket and the valve just like that.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  7. #7
    Super Moderator Turbo Mopar Staff 135sohc's Avatar
    Join Date
    Aug 2008
    Location
    SoMd
    Posts
    6,178

    Re: A/C expansion valve and Evaporator question/issue

    Wondered what those plastic sleeve inserts were for, I always tossed them since my evap core has the pipe stubs sticking out of the block. The evaporator in the Shadow was a chrysler warranty replacement when it was just over a year old, copper/brass construction.
    1994 Shadow Sedan. 2.2 N/A, A568 400,000 miles. "the science experiment"
    1987 Shelby CSX #418. Long term rebuild and restore ?

  8. #8
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
    Join Date
    Dec 2005
    Location
    Warsaw, NY
    Posts
    8,838

    Re: A/C expansion valve and Evaporator question/issue

    interesting. Ive only seen aluminum on alot of cars. all were factory afaik.

    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

Similar Threads

  1. 92 Daytona Expansion Valve
    By DoubleD in forum Maintenance & General Tech
    Replies: 3
    Last Post: 07-18-2018, 11:59 AM
  2. Idle Air Control Valve issue
    By TheSteve in forum General Vendor Area
    Replies: 7
    Last Post: 06-03-2015, 06:59 PM
  3. piston expansion measurements
    By acannell in forum Engine - Block, Piston, Heads, Intakes
    Replies: 11
    Last Post: 01-17-2015, 11:06 PM
  4. evaporator core ID help
    By wallace in forum "I need help!"
    Replies: 10
    Last Post: 04-28-2014, 07:46 AM
  5. A/C expansion valve mounting screw thread size
    By 135sohc in forum "I need help!"
    Replies: 5
    Last Post: 03-24-2010, 01:50 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •