1. Remove the valve cover following the procedure in the Engine Service Manual.
2. Check all injector hold-down clamps for correct torque.
3. Remove any loose injectors. Inspect and clean following the procedure in the Engine Service Manual. Replace injector O-rings and install injectors following the procedure in the Engine Service Manual.
4. Test for fuel aeration to validate the repair. Go to “Aerated Fuel Inspection” (page 105) in this section.