For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2005 🢒 G6 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 4T40-E/4T45-E 🢒 No Second Gear, Slips in Second Gear

No Second Gear, Slips in Second Gear for Pontiac G6 2005

No Second Gear, Slips in Second Gear

Checks

Causes

Second Clutch

No apply or slipping

Piston and Seal Assembly (404)

Binding, cracked, or leaking

Clutch Plates (96-99)

Worn friction or broken splines

Snap Ring (406)

Out of position

Spring (405)

Binding

Driven Sprocket Support (95)

Damaged, leaking, porous

Second Clutch Fluid Routing

Fluid leak or restriction

•	Valve Body

•	Gaskets and Spacer Plate

•	Channel Plate and Gasket

•	Driven Sprocket Support

•

Porosity

•	Misalignment

•	Loose or restricted

•	Fluid leak across the channels

Second Roller Clutch (452)

Damaged, not holding

1-2 Shift Solenoid Valve (305)

•

Stuck ON

•

Plugged

Forward Clutch

Low capacity shows up in Second Gear

Line Pressure

Low pressure

Refer to High or Low Line Pressure .

1-2 Accumulator (29-31)

•	Leak at the piston seal

•	Channel plate or case porosity

1-2 Accumulator Valve (323)

Stuck

2-3 Shift Valve (306)

Stuck in an upshifted position

PSA

Electrical or hydraulic malfunction