Genuine Chevrolet K1500 A/C Orifice Tube

Chevrolet K1500 A/C Orifice Tube Parts Questions & Experts Answers

• Orifice,A/C Evaporator Tube
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  Q: How to replace the expansion orifice tube in a Chevrolet C1500 and K1500's air conditioning system?

  A: To replace the A/C orifice tube in your vehicle's air conditioning system, it is recommended to have an air conditioning technician discharge and recover the refrigerant. Once the refrigerant has been discharged, open the hood and locate the A/C orifice tube fitting. Using two wrenches, hold the stationary fitting and loosen the other fitting. Inside the pipe leading to the evaporator, you will find the orifice tube with a fixed-diameter orifice and mesh filters at each end. Use needle-nose pliers to carefully remove the A/C orifice tube, applying heat if necessary. Before reinstalling, ensure that the screens are not plugged or damaged, the plastic housing is intact, and the brass orifice is unrestricted. When installing the new A/C orifice tube, insert it with the shorter end first towards the evaporator, and use a new O-ring lubricated with the proper refrigerant oil. Finally, reconnect the refrigerant line securely and have the system evacuated, recharged, and leak-tested by a professional technician.