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Where is the low pressure port for 99 blazer A/C

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If you are under the hood you will see 2 lines comming from the AC Compressor, the small line is the high pressure, the large line is low pressure, the port will most likely be near the compressor or near the accumulator bottle on the blower/heater case at the the firewall, the large low press. line is connected to this bottle looking assy.

Posted on Jul 26, 2008

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Looking under the hood, on the passenger side. You have a smaller hard line with a fitting coming off and it should have a black plastic cap on it.

Posted on Jul 26, 2008

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