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 MANUALSGMC2019SIERRA 1500 LIMITED BASE, 4WD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSWIRING DIAGRAMSCOMPONENT CONNECTOR END VIEWS (Q2-S70E)COMPONENT CONNECTOR END VIEWSQ27A PRESSURE CONTROL SOLENOID VALVE 1 (MW7)
2019 GMC Sierra 1500 Limited Base, 4WD, Gas
Q27A Pressure Control Solenoid Valve 1 (MW7)
2019 GMC Sierra 1500 Limited Base, 4WD, GasSECTION Q27A Pressure Control Solenoid Valve 1 (MW7)
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Connector Part Information
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Terminal Part Information
| Terminal Type ID | Terminated Lead | Diagnostic Test Probe | Terminal Removal Tool | Service Terminal | Tray Name | Core Crimp | Insulation Crimp |
|---|---|---|---|---|---|---|---|
| I | Not Required | Not Available | No Tool Required | Not Required | Not Required | Not Required | Not Required |
| Pin | Size | Color | Circuit | Function | Terminal Type ID | Option |
|---|---|---|---|---|---|---|
| A | - | RD | 150 | Ground | I | - |
| B | - | BU | 1525 | Shift Solenoid Control 1 | I | - |
RENDER: 1.0x
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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.