GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L80-E/4L85-E 🢒 Transmission Slips

Checks

Cause

Fluid Level

Too high or too low

Shift Solenoids

Leaking

4th Accumulator Piston Pin Retainer Ring

Missing