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Home >> Pontiac >> 2007 >> Solstice GXP, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transmission - 5L40-E/5L50-E - Introduction (2 Of 2)) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, Fifth Gear - Torque Converter Clutch Released >> Overdrive Clutch Applied

Overdrive Clutch Applied

WARNING: This page is about a different variant/trim than selected.
4-5 Shift Solenoid (SS) Valve:

The 4-5 SS valve is de-energized, blocking feed limit fluid from entering the 4-5 signal fluid circuit. 4-5 signal fluid pressure exhausts through the 4-5 SS valve and 4-5 shift valve spring (373) force moves the 4-5 shift valve (374) and the 4-5 shift control valve (375) to the released position.

4-5 Shift Valve:

45 fluid is routed through the 4-5 shift valve and enters the overdrive clutch feed 2 fluid circuit through orifice #28.

#12 Ball Check Valve:

Overdrive clutch feed 2 fluid seats the #12 ball check valve against the overdrive clutch feed 1 passage and enters the overdrive clutch fluid circuit.

Overdrive Clutch:

Overdrive clutch fluid is then directed to the overdrive clutch piston to apply the overdrive clutch plates and achieve Fifth gear.

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