For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2002 🢒 GMC MD Steel Tilt (W Model) 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E 🢒 Incorrect Torque Converter Clutch Apply or Release

Incorrect Torque Converter Clutch Apply or Release for GMC Truck GMC MD Steel Tilt (W Model) 2002

Incorrect TCC Apply or Release

Checks

Cause

AT Output (Shaft) Speed Sensor Assembly (22)

•	Poor connection

•	Pinched wire

•	A broken coil wire

•	Incorrect air gap

•	Inadequate signal

Throttle Position Sensor

•	Poor connection

•	Pinched wire

•	Incorrect resistance

PCM

Failed

Automatic Transmission Fluid Pressure Manual Valve Position Switch (40)

•	Poor Connection

•	No signal to the PCM

•	Pinched wire

AT Fluid Temperature Sensor Assembly (332)

•	Poor Connection

•	No signal to the PCM

•	Incorrect Resistance

•	Pinched wire

Engine Coolant

No signal to the PCM

Brake Switch

•	Poor connection

•	Pinched wire

•	No voltage supply

•	Misadjusted

Engine Ignition Module

Loss of signal or intermittent

Check the PCM for current DTCs.

Only 2WD