Expansion (Orifice) Tube Replacement

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Orifice Tube Assembly & Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging (Non-HP2) or Refrigerant Recovery and Recharging (HP2) . Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement . Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
1	Orifice Tube Fitting CAUTION: Refer to Fastener Caution . Tip: Loosen orifice tub fitting and separate the pressure line to access the orifice. Tighten: 9 N.m (80 lb in)
2	O-ring Seal Tip: Remove and discard O-ring. Refer to Air Conditioning O-Ring Seal Replacement .
3	Orifice Tube Assembly Tip: Use J 26549-E to remove orifice tube. See Special Tools .