GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Geo 🢒 1997 🢒 Tracker - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 3L30 🢒 No 1-2 Upshift in D or D2

No 1-2 Upshift In "D" Or "D2"

Checks

Cause

Governor Valves

Stuck

1-2 Shift Valve

Stuck in 1st gear position

Oil Pump Hub Seal Rings

Leak

Governor Pressure Circuit

Leak

Governor Screen

Clogged