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Changing the AC compressor. Cannot find the weights for oil and r134a

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by mypriuscious, Jun 8, 2023.

  1. mypriuscious

    mypriuscious Member

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    As the title says. I do have oil and r134a for hybrids. I even found the FSM to do it. But I did not see the weights listed.

    Also, any suggestions on how to get the broken pin out of the writing harness?
     

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    #1 mypriuscious, Jun 8, 2023
  2. PriusCamper

    PriusCamper Senior Member

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    Hopefully @lech auto air conditionin sees this and can let us know how they look up those specific specs for Prius.
     
    #2 PriusCamper, Jun 8, 2023
    lech auto air conditionin and mypriuscious like this.
  3. mypriuscious

    mypriuscious Member

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    I ended up looking a bit more on Google. I did find a spec of 2.7 ounces of oil and 420g of freon. Which is, 14.81oz. Which seems low based on other systems I've had to work with. Also, the cans of Hybrid r134a are 10oz with .5oz of oil in each can. Should that also be factored into refilling a dry system?

    I suppose those are updated questions for the thread.
     
    #3 mypriuscious, Jun 8, 2023
  4. PriusCamper

    PriusCamper Senior Member

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    Correct... Here's the Google search to confirm:

    upload_2023-6-8_21-26-10.png
     
    #4 PriusCamper, Jun 9, 2023
  5. Mendel Leisk

    Mendel Leisk Senior Member

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    What’s an FSM? Attached is Toyota Repair Manual excerpt, AC section, hopefully has the info.
     

    Attached Files:

    #5 Mendel Leisk, Jun 9, 2023
    Last edited: Jun 9, 2023
  6. mypriuscious

    mypriuscious Member

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    factory service manual
     
    #6 mypriuscious, Jun 9, 2023
    Mendel Leisk likes this.
  7. lech auto air conditionin

    lech auto air conditionin Senior Member

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    CYTK is the name of the app you can look it up on your phone 30 day free trial

    It gives labor times prices procedures, exploited view, photographs parts list, parts numbers, type of oil, viscosity of oil recommended quantity of oil refrigerant weight.

    I have a comp code if anyone is interested and helps me out a little bit on my subscription LECHAIR all capital letters all one word

    But you can still play with the free trial for 30 days
     
    #7 lech auto air conditionin, Jun 9, 2023
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  8. Paladain55

    Paladain55 Active Member

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    Yes account all oil together and all freon together. Pull a vacuum on the system for at least 20 minutes or longer, make sure the vacuum actually gets to the bottom of the gauge, then weigh in oil and refrigerant. You can suck your compressor oil in the high side, and the refrigerant into the low side. Put the compressor oil in first, then close the high side and vacuum the low side again and then purge your freon line at the top near the gauge to purge the air out of the line and suck it in.

    You can watch any home hvac or auto hvac video on youtube for a good reference on how to use the gauges and do the process. There's a reason why EPA universal certifications for servicing hvac equipment are so cheap and easy to get. Its so easy to do. Main thing here is weighing in refrigerant accurately and making sure you vacuum out air.
     
    #8 Paladain55, Jun 10, 2023
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