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Thread: A/C Issues

  1. #1
    Join Date
    Apr 2011
    Location
    Fort Wayne, IN
    Posts
    971

    A/C Issues

    So my car sat for 5 years while I was working on rebuilding the motor. I got the motor back in and Iím having issues with my A/C.

    The A/C system was left in the car intact. I did not undo any lines or open the system. When I turned it on the compressor didnít engage. I got some refrigerant and it wasnít registering so I added some and the clutch on the compressor engaged. It was a little low so I added some refrigerant. Still hot aur was coming out when the system was set to cool.

    Then I noticed this odd hissing sound inside the car when the compressor was running. Any ideas what it could be? Iíve never messed with A/C.

    Here is the link to my video of the noise itís making.

    https://youtu.be/0DubcVe2bzM


    Sent from my iPhone using Tapatalk
    2001 325i Sport Package / Rebuilt Motor at 194K / Lemforder M3 Motor Mounts / Thule Roof Rack / Eagle Eye Clear Tail Lights / Lemforder Sway Links
    BMW Performance Shift Knob / Alcantra Shift Boot / BBS Wheels / 15% Tint
    RIP - 2009 335i xDrive / Twin Turbo / Cold Weather Package / Premium Package / 15% Tint
    ER Chargepipe / Tial BOV / Dual Cone Intake / OEM Roof Rack

  2. #2
    Join Date
    May 2020
    Location
    Toronto, ON
    Posts
    216
    Autozone.com
    I haven't done a whole lot of reading on this, but I've heard of a few cases on our cars. I have the same noise as you, but much quieter and it's on/off. I typically put a half to full small can of R134a in every summer, as I find the AC is a bit weak after sitting for a winter. Following this thread to see if others have the same symptoms

    Edit: I've seen some people saying it's because it's low on refrigerant. But I did get the AC professionally recharged at some point, and it still made that noise
    2004 BMW 330CI ZHP (well, technically ZAM)


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