03 9200i AC

Discussion in 'International Forum' started by Pool6710, Nov 2, 2015.

  1. Pool6710

    Pool6710 Medium Load Member

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    I was wondering what the two sensors are on the expansion valve below the passenger seat area and what sensor is in the line under the hood?


    Are both the two sensors under the passenger seat both low pressure?
     
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  3. Pool6710

    Pool6710 Medium Load Member

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    Low pressure reads atleast 110 and the engine fan doesn't turn on. All it blows out is hot air

    The fan will cycle and cool the motor down so I know the fan clutch is good.
     
  4. Pool6710

    Pool6710 Medium Load Member

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    Zip tied the fan sensor wire better and the fan kicked on. We'll see if that fixes it tomorrow.
     
  5. BoxCarKidd

    BoxCarKidd Road Train Member

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    Does the a/c clutch center turn? Does it have power to the a/c clutch? Did a/c season not just go out in Minnesowta? That would be poaching anyways!
     
  6. Pool6710

    Pool6710 Medium Load Member

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    Yeah it all works as it should, had high and low pressures tested when I got home.

    A/c will be done by the end of the week here. I like it freezing in my truck. Was a #### hot box today.

    Fixed it with some zip ties, I must have a short in a wire.
     
  7. Heavyd

    Heavyd Road Train Member

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    Switches on the expansion valve are your low and high pressure switches to run the compressor within safe pressure limits. The switch on the line under the hood is the high pressure switch input to turn on the engine fan when needed.
     
  8. Pool6710

    Pool6710 Medium Load Member

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    Are both of the high and low the same switch part # by chance?
     
  9. Heavyd

    Heavyd Road Train Member

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    No. It also depends if your trucks has an APADS module or not, those are different yet again.
     
  10. Pool6710

    Pool6710 Medium Load Member

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    I didn't see one located on the firewall, assumed it would be next to the air sensors for buzzer and brake lights?
     
  11. Heavyd

    Heavyd Road Train Member

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    Usually mounted on firewall on left side near/on air cleaner brackets or coolant reservoir depending on the year.
     
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