Control Valve Body Replacement

2007 Chevrolet HHR L4-2.4LSECTION Control Valve Body Replacement


Control Valve Body Replacement

Removal Procedure




1. Remove the transmission side cover. Refer to Control Valve Body Cover Replacement.
2. Remove the bolts (9, 12 and 16) from the control valve body assembly (18).
3. Remove the control valve body assembly (18).
4. Remove and discard the spacer plate assembly with bonded gasket (90).

Installation Procedure




1. Install the control valve body onto the spacer plate (90) assembly.




2. Inspect the transmission fluid pressure (TFP) switch assembly (13) in order to verify the condition and correct location of the 4 pressure switch O-rings.
3. If necessary replace the pressure switch O-rings.




4. Install the TFP switch assembly (13) onto the control valve body assembly.




5. Install the eighteen control valve body assembly bolts.





Notice: Refer to Fastener Notice.

6. Hand start the bolts.

Tighten the bolts to 14 N.m (124 lb in).

7. Install the transmission side cover. Refer to Control Valve Body Cover Replacement.

Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM), or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

8. Reset the TAP values. Refer to Transmission Adaptive Functions.

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.