Question about 1999 GMC Suburban

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Rear a/c works fine but front a/c blows about the same as outside air temp

Where is the a/c orifice on a 94 suburban

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The orifice on Suburbans with rear A/C is located near the Y shaped junction block in the tube between the condenser and the front evaparator. It is on the right side near the radiator support. The orifice is in the tube between the junction block and front evaporator. If you look close there is a slight crimp in the tube to keep it from sliding too far into the tube. You should be able to disassemble the tube and remove and replace it.
Sorry for the late post but I just saw your question.

Posted on May 28, 2009

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