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Home >> Chevrolet >> 2002 >> C3500 HD 8.1 G, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Automatic Transmission Diagnosis - 4L80-E (Diesel)) >> Description & Operation >> Adapt Function >> Steady State Adapts

Steady State Adapts

WARNING: This page is about a different car, the 2002 GMC Cab & Chassis Sierra and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The PCM monitors the transmission ISS and the OSS after a shift has occurred, to determine the amount of clutch slippage in the transmission. If to much slippage is detected, the PCM adjusts the current, to the PC solenoid, to increase the line pressure and reduce clutch slip.