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  1. #11
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    murdog94's Avatar
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    Correct...
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

  2. #12

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    Thanks again! I will report back what I find.

    You guys are awesome help for sure!

  3. #13
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    Yep, if you have a wire, you should be able to slip it into the power connector.

  4. #14

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    Quote Originally Posted by MightyMax View Post
    Yep, if you have a wire, you should be able to slip it into the power connector.
    Power connector meaning the compressor side, not the harness side correct?

  5. #15
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    Right power has to go to the compressor.
    The plug/boot that plugs into the compressor is what supplies the power to the compressor when the switch on the Accumulator tells it too, based on pressure in the system.

  6. #16

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    Hi all

    So My AC system is not working and when the car is running the clutch on the compressor is not engaging. Just to be sure I am understanding correctly If I disconnect the low pressure switch and run a wire or paper clip to bridge the connector. If my clutch is not running because of low pressure or a bad switch then this would tell me if the clutch engages.

    My next move would be to check the pressure and if good it is a bad switch and if it is low I need a boost.

    I know some trucks have a combine Low pressure and high pressure switch it is not clear to me how to tell if that is in fact the case.

    thanks
    1995 Saturn Sw1 196K and counting
    2001 Suburban LS 150K and counting
    2004 MR2 Spyder 62K and counting
    2007 mini cooper S 60K and counting

  7. #17
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    So how is it you know the charge is good if the compressor does not run?
    2000 GMC YUKON SLT, 5.3L tow pkg, G80 rear/w 3.73 gear

  8. #18

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    Quote Originally Posted by dpeter View Post
    So how is it you know the charge is good if the compressor does not run?
    you have to measure the pressure in the system with a gauge low side and high side should be equal and I have read somewhere between 50-100 Psi ( I have seen a large range of numbers.

  9. #19
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    T-bone, that will only tell you that there is refrigerant in the system but not how much.

  10. #20
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    Quote Originally Posted by dpeter View Post
    T-bone, that will only tell you that there is refrigerant in the system but not how much.

    Yes, but it will tell you that there is something in the system....so you can conclude that there is not a leak or a big one at least.

    Now once the compressor is turned on, and running.....then you can see what the pressure rises/falls too.....and go from there.

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