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Where is the orifice tube on a 2002 Chevy Suburban?


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Answered 2010-06-04 02:30:10

Located in front of the radiator on the passenger side in the condensor line.


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If its a single evaporator unit (front air only). then it is probably located in the condensor. If it is a dual unit (front and back), the front orfice tube will probably be after the "Y" in the compressor high pressure line, and prior to the accumulator. The rear unit does not use an orifice, but rather a Thermal expansion valve.

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Many GM vehicles put the AC orifice tube right after the condenser coil. It would typically be near the bottom, almost connected to the condenser. My '99 Suburban AC orifice is located in the line that runs across the passenger side inner-fender. There is a union very close to the innermost edge of the battery tray. Break that union (after relieving pressure) and you will find it there.

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A 1987 Dakota uses an expansion valve, not an orifice tube.A 1987 Dakota uses an expansion valve, not an orifice tube.

It uses an expansion valve, not an orifice tube.

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