OEM GMC Jimmy Air Inject Check Valve

GMC Jimmy Air Inject Check Valve Parts Questions & Experts Answers

• Check Valve
  12567733
  Q: How to replace the Air Inject Check Valve on Bank 2 on GMC Jimmy?

  A: The first step for replacing the Air Inject Check Valve/Pipe on Bank 2 requires raising the vehicle. 2WD vehicles do not need steering linkage shield removal with bolts; 4WD vehicles need removal of the AIR shield by removing its bolts. Begin by taking out the reactor pipe assembly bolts then remove the assembly with gasket but only take off the check valve from the reactor pipes by opening spring clamps for replacement purposes. The check valve separation from the reactor pipe requires the spring clamp and pipe locknut to become loose. The installation requires connecting reactor pipe components with spring clamp after tightening the pipe locknut to 10 N.m (89 lb in) when check valve remains in position. Clean the manifold mounting surface before adding the reactor pipe with a gasket followed by tightening reactor pipe assembly bolts to 25 N.m (18 lb ft) while the reactor pipe assembly retainer bolt requires 40 N.m (30 lb ft). Use spring clamps to reinstate the connection between the reactor pipes and the reactor pipe assembly. The AIR shield should be omitted during the installation process of 2WD vehicles but 4WD vehicles need to follow the installation procedure with AIR shield bolts torqued to 33 N.m and steering linkage shield bolts torqued to the same value. Finally, lower the vehicle.