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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 685 (Automatic Transaxle - 4T45-E - Introduction (2 Of 2)) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Manual Second Gear (With Electronic Range Select Mode) >> Intermediate and Fourth Band Applies

Intermediate and Fourth Band Applies

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

1-2 Shift Valve 

The 1-2 shift solenoid valve is Off when the PCM commands the Second gear. A spring force holds the 1-2 shift valve in the upshifted position. Intermediate band feed fluid is routed through the valve and into the intermediate band fluid circuit.

#3 Checkball (Intermediate Band Apply) 

Intermediate band fluid pressure seats the #3 checkball and is forced through the #8 orifice. This orifice helps to control the intermediate band apply.

Intermediate and Fourth Servo 

Intermediate band fluid pressure is routed to the inner area of the intermediate and Fourth servo piston. This fluid pressure moves the servo piston and apply pin in order to apply the intermediate and Fourth band. The band provides engine compression braking in Manual Second - Second Gear.

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