Slips or Shudders in First Gear

WARNING: This page is about a different variant/trim than selected.

Checks	Causes
DEFINITION: A large engine RPM increase is noted in first gear, Drive range, with little or no vehicle forward speed increase. Second, third, and fourth gear operations are normal. Shifts into first gear are soft or do not occur. First gear ratio is 2.921:1
Forward Clutch	Clutch plates worn Porosity in the piston Piston seal damaged Forward clutch housing ball check valve not sealing or damaged Input shaft fluid seals damaged or missing
Control Valve Body Accumulator Assembly	Face not flat Spacer plate or gaskets mispositioned or damaged
Input Sun Gear Shaft	Broken shaft
Forward Sprag Clutch Assembly	Sprags not holding
Low Clutch Sprag Assembly	Sprags not holding
Torque Converter Assembly	Stator roller clutch not holding
Line Pressure	Refer to Fluid Pressure High or Low .