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DIAGNOSIS AND TESTING - WIND NOISE Wind noise is the result of most air leaks. Air leaks can be caused by poor sealing, improper body compo- VISUAL INSPECTION BEFORE TESTS Verify that floor and body plugs are in place and body components are aligned and sealed. If compo- ROAD TESTING WIND NOISE (1) Drive the vehicle to verify the general location of the wind noise. (2) Apply 50 mm (2 in.) masking tape in 150 mm (6 in.) lengths along weatherstrips, weld seams or POSSIBLE CAUSE OF WIND NOISE • Moldings standing away from body surface can catch wind and whistle. • Gaps in sealed areas behind overhanging body flanges can cause wind-rushing sounds. • Misaligned movable components. • Missing or improperly installed plugs in pillars. • Weld burn through holes. STANDARD PROCEDURE STANDARD PROCEDURE - PLASTIC BODY There are many different types of plastics used in today’s automotive environment. We group plastics in Rigid Plastics: Examples of rigid plastic use: Fascias, Hoods, Doors, and other Body Panels, which include SMC, Semi-Rigid Plastics: Examples of semi-rigid plastic use: Interior Panels, Under Hood Panels, and other Body Trim Panels. Flexible Plastics: Examples of flexible plastic use: Fascias, Body Moldings, and upper and lower Fascia Covers. Repair Procedure: The repair procedure for all three categories of plastics is basically the same. The one difference is Adhesion Promoter/Surface Modifier: Adhesion Promoters/Surface Modifiers are required for certain plastics. All three categories may have plastic identification and repair procedures. SAFETY PRECAUTION AND WARNINGS WARNING: • EYE PROTECTION SHOULD BE USED WHEN SERVICING COMPONENTS. PERSONAL INJURY CAN RESULT. • USE AN OSHA APPROVED BREATHING MASK WHEN MIXING EPOXY, GRINDING, AND SPRAYING • AVOID PROLONGED SKIN CONTACT WITH RESIN, PETROLEUM, OR ALCOHOL BASED SOL- • DO NOT VENTURE UNDER A HOISTED VEHI- CLE THAT IS NOT PROPERLY SUPPORTED ON STANDS. PERSONAL INJURY CAN RESULT. NOTE: • When holes must be drilled or cut in body pan- els, verify locations of internal body components • Do not use abrasive chemicals or compounds on undamaged painted surfaces around repair CS BODY 23 - 3 BODY (Continued) |