Control Valve Assembly and Transmission Fluid Pressure (TFP) Switch Installation

WARNING: This page is about a different car, the 2004 Pontiac Sunfire, 2004 Chevrolet Classic, and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Control Valve Body Assembly

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IMPORTANT: 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.

Install the control valve body to spacer plate gasket (22) onto the spacer plate (23).
Install the control valve body assembly (18) onto the gasket (22).

Fig 2: Identifying 4 Pressure Switch O-Rings

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

Fig 3: Locating TFP Switch Assembly

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

Fig 4: Installing Control Valve Body Assembly Bolts

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Install the 18 control valve body assembly bolts.

Fig 5: Identifying Control Valve Body Assembly Bolts

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NOTE: Refer to Fastener Notice in Cautions and Notices.

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