ION L4-2.4L (2007)
1. Drill 8 mm (5/16 in) plug weld holes in the service part as necessary in the locations noted from the original panel.
2. Prepare all mating surfaces as necessary.
3. Apply 3M Weld-Thru Coating P/N 05916 or equivalent to all mating surfaces.
4. Position the upper plenum panel to the vehicle using 3-dimensional measuring equipment. Clamp the panel in place.
5. Plug weld accordingly.