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 MANUALSCHEVROLET2012SUBURBAN 2WD V8-5.3LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLETESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICS2ML70 - AUTOMATIC TRANSMISSIONCONTROL SOLENOID VALVE AND TRANSMISSION CONTROL MODULE ASSEMBLY INSPECTION
2012 Chevrolet Suburban 2WD V8-5.3L
Control Solenoid Valve and Transmission Control Module Assembly Inspection
2012 Chevrolet Suburban 2WD V8-5.3LSECTION Control Solenoid Valve and Transmission Control Module Assembly Inspection
Control Solenoid Valve and Transmission Control Module Assembly Inspection
1. Inspect the control solenoid (w/body and TCM) valve assembly connectors and pins (2, 3, 4) for the following conditions:
* Damage
* Bent pins
* Debris
* Broken retaining tab
* Contamination
2. Ensure no metallic debris is inside the connectors near the terminal pins.
3. Inspect the control solenoid (w/body and TCM) valve assembly solenoid leads (1) for contamination or metallic debris.
4. Inspect the 4 control solenoid (w/body and TCM) valve assembly filter plate retaining tabs (5) for cracks and ensure proper tension when filter plate is attached.
RENDER: 1.0x
NO RELATED
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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.