Question about 2000 Saturn SL

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2000 Saturn SL1, need to locate low pressure service port on compressor. Bought an AC booster recharge hose with gauge and R-134a can. I can see both ports, but the gauge for the booster only fits one port. Want to make sure I am attaching to the correct port. Couldn't find a picture of the compressor online to make sure I have identified the correct port.

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  • Anonymous Mar 24, 2014

    Where is the 2005 Saturn Relay ac low pressure port location. I see two on aluminum tubes. Both are black and have no identifiable words or letters on the plastic caps.

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  • Master
  • 341 Answers

The gauge only fits one port so you can't hook it up incorrectly basically. It wasn't always that way. The old days with r-12 you could make a mistake but car manufacturers finally did something about it. I know the first time it's a little scary, but after you do it,no problem. Have fun!

Posted on Jun 22, 2009

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SOURCE: AC booster recharge hook-up

You can only attach the the recharge hose from the kit to the low side ( A/C service port) and the cap should be blue with a leter L on it. Good luck and follow the instruction and don't over charge the system. With the AC on the coldest setting, use a thermometer in a middle vent. Normal vent temperature readings will vary depending on the (ambient) outside temp. The vent temperature should range from around 42-55 degrees in my experience. If normal gauge readings are obtained and the vent air is cold - STOP don’t overcharge the system. The only proper way to remove refrigerant is with a AC recovery machine so if this is being done at home I can’t emphasize enough not to over charge the system. And actually the best way to insure the proper charge is in a system, is to use an AC machine to recover the R134a and then evacuate and recharge the system with the correct amount. Most cars have the specified amount on a decal under the hood.  Good luck and hope this helps.

Posted on Jul 03, 2009

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