how much r134a in a 359?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rank, Aug 3, 2022.

  1. rank

    rank Road Train Member

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    94552690-FC85-4A59-854B-889B06F82F45.jpeg here's a pic of the rad to show the condenser. ignore the shop towel on the CAC
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    I'd start with 3 and see where your pressures are
     
  4. wore out

    wore out Numbered Classic

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    The 359 still uses an expansion valve on the A/C. With the small condenser and bunk bypassed it’s gonna be 4 cans
     
  5. rank

    rank Road Train Member

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    hey Wore. It's been a while
     
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  6. W923

    W923 Heavy Load Member

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    I second approximately 4 cans or roughly 3 pounds and fill till the pressures are right.
    In my experience it will be just a little bit colder with slightly less than recommended refrigerant if you do happen to get a hard number.
    Hopefully you got all the shrapnel out of the system
     
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  7. rank

    rank Road Train Member

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    I thought I should stop in and say thanks to everyone for the info. First time I needed it was getting unloaded in CT today. 4 cans spot on.
    74ABC2B2-AFA9-4152-A2B2-C3A91421D8A8.jpeg
     
    Last edited: Aug 22, 2022
  8. W923

    W923 Heavy Load Member

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    Is that the truck…it’s sharp either way
     
    rank Thanks this.
  9. rank

    rank Road Train Member

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    yep that's it
     
    W923 Thanks this.
  10. wore out

    wore out Numbered Classic

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    That ######## is still a looker I see
     
    rank Thanks this.
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