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.
Control Valve Assembly and Transmission Fluid Pressure Switch Installation
2009 Chevrolet HHR L4-2.4LSECTION Control Valve Assembly and Transmission Fluid Pressure Switch Installation
Control Valve Assembly and Transmission Fluid Pressure Switch Installation
Note: The 4T40-E/4T45-E non-Electronic Range Select Mode models use a spacer plate with 2 identification notches. The 4T45-E models with Electronic Range Select Mode use a spacer plate with 1 identification notch.
1. Install a NEW control valve body to spacer plate assembly onto the case cover.
2. Install the control valve body assembly (18) onto the spacer plate assembly (90).
3. Inspect the TFP switch assembly (13) in order to verify the condition and correct location of the 4 pressure switch O-rings.
4. If necessary replace the pressure switch O-rings.
5. Install the TFP switch assembly (13) onto the control valve body assembly.
6. Install the 18 control valve body assembly bolts.
Caution: Refer to Fastener Caution (Fastener Caution).
7. Hand start the bolts. Tighten the bolts to 14 Nm (124 lb in).
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.