Question about 1997 GMC Suburban

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Where do i find the orafice on aa 1997 GMC Suburban with rear air. Also, I am replacing the compressor and accumulatro. Instructions say to add oil to the accumlator low side. How do i determine the low side of accumulator?

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The orifice tube is located on the passenger side below the air filter housing between the connector and the condenser line. Break open connection and use a place of needle nose to gently twist it out of the tubing or used could use the proper tool if available. lol
Follow the line back to the compressor from the accumulator/ dryer and that will you which is the low side. Not that you should find a high side connection on the dryer.

Posted on Oct 11, 2009


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