OEM GMC Jimmy A/C Orifice Tube

GMC Jimmy A/C Orifice Tube Parts Questions & Experts Answers

• Evaporator Core Connector
  3033879
  Q: How to replace the A/C Orifice Tube in an A/C system on GMC Jimmy?

  A: The replacement process for the A/C Orifice Tube begins by recuperating refrigerant from the system then removing the Evaporator tube from the Evaporator. The o-ring seal gets discarded as the technician uses the A/C Orifice Tube remover and installer (J 26549-E) to take out the A/C Orifice Tube. Before installing the new tube, remove all restricted or blocked material from it first and take out the existing pressure switch in this area to avoid damage. Through the use of a heat gun on the inlet pipe dimples a distance of 7 mm (0.25 inches), carefully direct soft heat to the A/C Orifice Tube while using the A/C Orifice Tube remover and installer (J 26549-E) for tube handling. Follow a series of rotating movements combined with forward and backward pressure to extricate and pull out the entrapped tube. The installation process should begin with feeding the shorter screen section of the new A/C Orifice Tube into the Evaporator through the use of the A/C Orifice Tube remover and installer (J 26549-E). First, apply 525 viscosity refrigerant oil to the new o-ring seal before installing it onto the Evaporator along with attaching the Evaporator tube with minimal torque set to 28 n.m (21 lb ft). The a/c system evacuation and recharging process follows after which you should test all fittings using the halogen leak detector (J 39400-A).