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.
Hydraulic Control Module
2009 Chevrolet Tahoe Base, 4.8 CSECTION Hydraulic Control Module
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| 300 | Control Valve Channel Plate Bolt |
| 301 | Control Valve Upper Body Assembly |
| 302 | A/Trans Fluid Pump Ball Check Valve |
| 303 | Control Valve Body Spacer (w/Gasket) Plate Assembly |
| 304 | Control Valve Channel Plate |
| 305 | Control Valve Channel Plate Spacer Plate Gasket |
| 306 | Control Solenoid Valve Heat Sink (w/Body and TCM) Bolt |
| 307 | Control Solenoid (w/ Body and TCM) Valve Assembly |
| 308 | Control Valve Lower Body Bolt |
| 309 | A/Trans Manual Shift Shaft Position Switch Assembly Bracket |
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.