Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2013SONIC L4-1.8LREPAIR AND DIAGNOSISBODY AND FRAMEAPPLICATION AND IDMILD STEEL
2013 Chevrolet Sonic L4-1.8L
Mild Steel
2013 Chevrolet Sonic L4-1.8LSECTION Mild Steel
Mild Steel
This information provides repair recommendations and general guidelines for steel classified as Mild Steel. This type of steel normally has a tensile strength less than 270 MPa. This includes the common steel names of:
-Mild Steel
-Bake Hardenable Steel (BH)
-Solid Solution Strengthened Steel
General Motors recommends the following when repairing or replacing this type of steel during collision repair.
Recommended Repairs
-Cold repairs can be performed on this type of steel, unless the damage includes kinks. If the damage includes kinks, the part should be replaced.
-Controlled use of heat can be used to repair damage, if the heat does not exceed 650 � C (1200 � F). The heat should be applied a maximum of 2 times, for up to 90 seconds.
-Sectioning or partial replacement of this type of steel is recommended only at approved locations, in a specific sectioning procedure.
-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 replace factory spot welds, where applicable
-MIG plug welding and MIG stitch welding can be used on this type of steel.
-MIG brazing can be used on this type of steel.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.