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Home >> Chevrolet >> 2001 >> Cavalier LS, 2.2 4 >> Repair and Diagnosis >> External Pages >> Different car >> Section 260 (Automatic Transaxle - 4T40-E/4T45-E - Overhaul) >> Description and Operation >> Overdrive Range, 4-3 Downshift - Torque Converter Clutch (TCC) Not Applied (W/o Electronic Range Select Mode) >> Torque Converter Clutch

Torque Converter Clutch

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.

The PCM commands TCC release prior to initiating a 4-3 downshift. When the TCC is in the release position, release fluid pressure is routed to the pressure switch assembly. This fluid pressure signals the PCM that the TCC is in the release position. The TCC is not applied under normal operating conditions in Third gear.

Fig 1: Overdrive Range, 4-3 Downshift - TCC Not Applied - Without Electronic Range Select Mode
GM1205861Courtesy of GENERAL MOTORS CORP.
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