7. Remove the upper plenum panel.
Installation Procedure
Important: If the location of the original plug weld
holes can not be determined, space the plug
weld holes every 40 mm (1
1
⁄
2
in) apart.
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.
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3-44 2003 Saturn Ion