Workshop Repair and Service Manuals GMC SIERRA
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Mild Steel

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This information provides repair recommendations and generalguidelines for steel classified as Mild Steel. This type of steelnormally has a tensile strength less than 270-MPa. Thisincludes the common steel names of:

Mild SteelBake Hardenable Steel (BH)Solid Solution Strengthened Steel

General Motors recommends the following when repairing orreplacing this type of steel during collision repair.

Recommended Repairs:Cold repairs can be performed on this type of steel, unlessthe damage includes kinks. If the damage includes kinks, the partshould be replaced.Controlled use of heat can be used to repair damage, if theheat does not exceed 650°C (1200°F). The heatshould be applied a maximum of 2-times, for up to90-seconds.Sectioning or partial replacement of this type of steel isrecommended only at approved locations, in a specific sectioningprocedure.This type of steel can be used as a sleeve, or backer plate,when recommended in a specific sectioning procedure.Squeeze Resistance Spot Welding can be used to replacefactory spot welds, where applicableMIG plug welding and MIG stitch welding can be used on thistype of steel.MIG Brazing can be used on this type of steel.
Approved Equipment for Collision Repair Warning     Warning:To avoid personal injury when exposed to welding flashes orto galvanized (Zinc Oxide) metal toxic fumes while grinding/cuttingon any type of metal or sheet molded compound, you must work in aproperly ventilated area,...
General Information     This maintenance section applies to vehicles with a dieselengine. For gasoline engine vehicles, see the maintenance schedulesection in the owner manual. Your vehicle is an important investment. This sectiondescribes the...
Mild Steel     This information provides repair recommendations and generalguidelines for steel classified as Mild Steel. This type of steelnormally has a tensile strength less than 270-MPa. Thisincludes the common steel names of: Mild...
MIG Welded Full Panel Replacement     Removal Procedure Warning:Refer toApproved Equipment for Collision Repair Warning. Note:Use this procedure for all panels that are replaced at thefactory seams, unless a specific procedure exists in the CollisionRepair...
Recommended Fluids and Lubricants     Fluids identified below are specific to the hybrid vehicle and can be obtained fromyour dealer. See the owner manual for the other fluids and lubricants recommendedfor the vehicle. Usage Fluid/Lubricant Drive...
Maintenance Replacement Parts     Replacement parts identified below by name, part number, orspecification can be obtained from your dealer. Part GM Part Number ACDelco Part Number Engine Air Cleaner/Filter Standard Filter 15908916* A3086C*...