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Home >> Pontiac >> 2008 >> Torrent GXP, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Automatic Transaxle - AF33-5 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Description and Operation >> Electronic Component Description >> Shift Solenoid Valves >> Notes

Shift Solenoid Valves: Notes

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Fig 1: Identifying Shift Solenoid Valves
GM1973680Courtesy of GENERAL MOTORS CORP.

The AF33-5 uses five electromagnetic shift solenoid valves to control upshifts and downshifts in all forward gear ranges. These shift solenoid valves are controlled by the TCM and work together in a combination of ON and OFF sequences to control the various shift valves. The TCM uses numerous inputs to determine which solenoid state combination the transmission should be in. The following table shows the solenoid state combination required for each gear range. Refer to Shift Solenoid Valve State and Gear Ratio .