Fourth Gear Starts. GMC Truck GMC C Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Fourth Gear Starts

Checks

Cause

2-3 Shift Solenoid Valve

•

Stuck On

•	Pinched wire to ground

Check the PCM for current DTCs.