Workshop Repair and Service Manuals GMC SIERRA
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Anti-Corrosion Treatment and Repair Emblems Decals Paint - part 3

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Seam Sealers

Sealers are intended to prevent water and dust from enteringthe vehicle and also are anti-corrosion barriers. Sealers areapplied to such areas as rear compartment lid hem flanges,wheelhouse, quarter outer, floor, cowl, roof, and various otherpanel to panel attaching points. The originally sealed joints areobvious and any damage to these sealed locations should becorrected by resealing. Attaching points of new replacement panelsshould be resealed. Replacement lids and doors will also requiresealing in the hem flange areas.

Flanged joints, overlap joints, and seams should be sealedusing a quality sealer of medium-bodied consistency. The sealerused must retain its flexible characteristics after curing and bepaintable.

Open joints which require bridging of the sealer in order toclose a gap should be sealed using a heavy-bodied caulkingmaterial. Follow the label directions for the materialselected.

Color application may be required in order to restorerepaired areas such as hood, fenders, doors, quarters, lid, roof,engine compartment, underbody, and inner panels to originalappearance. When this is necessary, conventional refinishingpreparation, undercoat buildup, and color application techniquesshould be followed.

Deadener materials, spray-on type, are used on various metalpanels in order to provide corrosion resistance and joint sealing.They control the general noise level inside the passenger area ofthe vehicle. When deadeners are disturbed because of damage, areremoved during repair operations, or a new replacement panel isinstalled, the deadener material must be replaced by a serviceequivalent material. The application pattern and location ofdeadener materials can be determined by observing the originalproduction installation.

Cleaning of the interior and underbody panel surfaces isnecessary when original galvanized or other anti-corrosionmaterials have been burned off during welding or heatingoperations. Removal of the residue from burning will requireadditional care in such areas as interior surfaces of box-typeconstruction and when configurations of the metal panels limitaccess to interior surfaces.

Front Bumper Impact Bar Brace Replacement Bumpers Front Bumper     Front Bumper Impact Bar Brace Replacement Callout Component Name Preliminary Procedure Remove the engine lower front splash shield. Refer toEngine Lower Front Splash Shield Replacement. 1 Front Bumper Impact...
Front Bumper End Cap Replacement (Chevrolet) Bumpers Front Bumper     Front Bumper End Cap Replacement Callout Component Name Preliminary ProceduresRemove the front bumper impact bar. Refer toFront Bumper Impact Bar Replacement.Remove the front bumper filler. Refer toFront Bumper Filler...
Rear Side Door Front Auxiliary Weatherstrip Replacement (Crew Cab) Weatherstripping     Rear Side Door Front Auxiliary Weatherstrip Replacement Callout Component Name 1 Push-In Retainer Tip:Remove the push-in retainer at the top. 2 Rear Side Door Front Auxiliary Sealing Strip Tip:Pull the...
Pickup Box Cover Hinge Kit Installation (Installation Instructions) Moldings     Installation Instructions Part Number 19243376 Note:Read all instructions thoroughly before starting. Note:The tonneau cover is not compatible with bedliners that fitover the side rails of the pickup box. Kit Contents Qty...
Front Air Deflector Extension Replacement (GMC) Bumpers     Front Air Deflector Extension Replacement Callout Component Name Preliminary Procedure Remove the engine lower front splash shields. Refer toEngine Lower Front Splash Shield Replacement. 1 Front Air...
Body Panel Paint Protector Replacement (VGC) Panels     The paint protective film and vehicle surface temperature should be 13–32°C (55–90°F)for best results.Automatic car washes should be avoided for at least 24-hours after the paint protectivefilm application.Wipe the vehicle...