GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2001 🢒 Sunfire 🢒 Transmission/Transaxle 🢒 Automatic Transaxle - 3T40 🢒 Fluid Passages
Figure 1:

Auxiliary Valve Body Cover Fluid Passages (Auxiliary Valve Body Side)
Object Number: 25691 Size: MF
(3)Converter Feed
(4)Converter Apply/Return
(5)Converter Release
(8)Solenoid Signal
(8)Solenoid Signal
(9)Exhaust
(10)Line
(10)Line
(12)Second Clutch
(31)Void
Figure 2:

Auxiliary Valve Body Cover Gasket Fluid Passages
Object Number: 25690 Size: MF
(3)Converter Feed
(8)Solenoid Signal
(10)Line
(10)Line
(10)Line
Figure 3:

Auxiliary Valve Body Fluid Passages (Auxiliary Valve Body Cover Side)
Object Number: 25694 Size: MF
(3)Converter Feed
(4)Converter Apply/Return
(5)Converter Release
(7)To Cooler
(8)Solenoid Signal
(9)Exhaust
(10)Line
(10)Line
(12)Second Clutch
(13)3rd Clutch (Direct Clutch)
(13)3rd Clutch (Direct Clutch)
(31)Void
Figure 4:

Auxiliary Valve Body Fluid Passages (Fluid Pump Side)
Object Number: 25693 Size: MF
(3)Converter Feed
(4)Converter Apply/Return
(5)Converter Release
(7)To Cooler
(9)Exhaust
(10)Line
(10)Line
(12)Second Clutch
(12)Second Clutch
(13)3rd Clutch (Direct Clutch)
(32)Drilled and Tapped Hole
Figure 5:

Control Valve Body and Fluid Pump Assembly Fluid Passages (Auxiliary Valve Body Side)
Object Number: 25696 Size: MF
(3)Converter Feed
(4)Converter Apply/Return
(5)Converter Release
(7)To Cooler
(9)Exhaust
(9)Exhaust
(10)Line
(11)Drive
(12)Second Clutch
(13)3rd Clutch (Direct Clutch)
(24)Governor
(303)Line Boost Valve
(324)Low Blow-off Valve
(370)Valve Body Pipe (Drive Fluid)
Figure 6:

Control Valve Body Fluid Passages (Case Cover Side)
Object Number: 25685 Size: LF
(#1)Checkball (16)
(1)Intake
(2)Decrease
(3)Converter Feed
(4)Converter Apply/Return
(5)Converter Release
(5)Converter Release
(6)Lube
(7)To Cooler
(9)Exhaust
(9)Exhaust
(9)Exhaust
(9)Exhaust
(10)Line
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(12)Second Clutch
(13)3rd Clutch (Direct Clutch)
(13)3rd Clutch (Direct Clutch)
(13)3rd Clutch (Direct Clutch)
(14)Intermediate (Manual Second)
(15)Low
(15)Low
(16)Low First (Manual First)
(16)Low First (Manual First)
(16)Low First (Manual First)
(17)Reverse
(20)RNDI
(21)RND
(22)1-2 Accumulator
(22)1-2 Accumulator
(23)3rd Accumulator
(24)Governor
(25)Throttle Valve (TV)
(25)Throttle Valve (TV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(27)Part Throttle Valve (PTV)
(27)Part Throttle Valve (PTV)
(28)Detent
(28)Detent
(29)Low Blow-off
(31)Void
Figure 7:

Typical Control Valve Body Spacer Plate Fluid Passages
Object Number: 25697 Size: MF
(1)Intake
(4)Converter Apply/Return
(6)Lube
(6)Lube
(7)To Cooler
(9)Exhaust
(9)Exhaust
(9)Exhaust
(10)Line
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(12)Second Clutch
(12)Second Clutch
(13)3rd Clutch
(13)3rd Clutch
(13)3rd Clutch
(13)3rd Clutch
(13)3rd Clutch
(14)Intermediate (Manual Second)
(15)Low
(15)Low
(15)Low
(16)Low First (Manual First)
(16)Low First (Manual First)
(16)Low First (Manual First)
(16)Low First (Manual First)
(17)Reverse
(20)RNDI
(21)RND
(22)1-2 Accumulator
(22)1-2 Accumulator
(23)3rd Accumulator
(24)Governor
(25)Throttle Valve (TV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(27)Part Throttle Valve (PTV)
(27)Part Throttle Valve (PTV)
(28)Detent
(28)Detent
Figure 8:

Case Cover Fluid Passages (Control Valve Body Side)
Object Number: 25698 Size: MF
(#2)Checkball (16)
(#3)Checkball (16)
(#4)Checkball (16)
(#5)Checkball (16)
(#6)Checkball (16)
(1)Intake
(3)Converter Feed
(6)Lube
(6)Lube
(6)Lube
(7)To Cooler
(7)To Cooler
(9)Exhaust
(9)Exhaust
(9)Exhaust
(10)Line
(11)Drive
(11)Drive
(11)Drive
(11)Drive
(12)Second Clutch
(12)Second Clutch
(13)3rd Clutch (Direct Clutch)
(13)3rd Clutch (Direct Clutch)
(14)Intermediate (Manual Second)
(15)Low
(15)Low
(16)Low First (Manual First)
(16)Low First (Manual First)
(17)Reverse
(18)Low/Reverse
(19)3rd/Reverse
(20)RNDI
(21)RND
(22)1-2 Accumulator
(23)3rd Accumulator
(24)Governor
(25)Throttle Valve (TV)
(26)Shift Throttle Valve (STV)
(26)Shift Throttle Valve (STV)
(27)Part Throttle Valve (PTV)
(28)Detent
(31)Void
(31)Void
(31)Void
(31)Void
(31)Void
Figure 9:

Case Cover Fluid Passages (Case Side)
Object Number: 25699 Size: MF
(1)Intake
(6)Lube
(9)Exhaust
(9)Exhaust
(9)Exhaust
(11)Drive
(12)Second Clutch
(12)Second Clutch
(17)Reverse
(18)Low/Reverse
(22)1-2 Accumulator
(23)3rd Accumulator
(24)Governor
(31)Void
(31)Void
(31)Void
(31)Void
(404)Vent Pipe
(404)Vent Pipe
(405)Line Pressure Pickup Pipe Plug
(406)Manual Valve
(412)Thermostatic Element
Figure 10:

Driven Sprocket Support Fluid Passages
Object Number: 25701 Size: MF
(11)Drive
(6)Lube
(6)Lube
(17)Reverse
(17)Reverse
(19)3rd/Reverse
(19)3rd/Reverse
(602)Driven Sprocket Support Assembly
(610)Direct Clutch Housing and Drum Assembly
Figure 11:

Oil Pump Drive Shaft and Drive Sprocket Support Fluid Passages
Object Number: 25695 Size: MF
(1)Steel Sleeve
(3)Converter Seal Drain Back
(4)Converter Apply/Return
(4)Converter Apply/Return
(5)Converter Release
(18)Fluid Pump Drive Shaft
(103)Drive Sprocket
(104)Drive Sprocket Support to Drive Sprocket Washer
(105)Turbine Shaft Fluid Seal Ring
(106)Turbine Shaft
(107)Turbine Shaft O-Ring Seal
(108)Drive Sprocket Support Bearing Assembly
(109)Drive Sprocket Support
(110)Drive Sprocket Support Bushing
(148)Turbine Shaft Fluid Seal Ring
Figure 12:

Case Fluid Passages (Case Cover Side)
Object Number: 25702 Size: MF
(1)Intake
(6)Lube
(9)Exhaust
(11)Drive
(12)Second Clutch
(12)Second Clutch
(17)Reverse
(18)Low/Reverse
(19)3rd/Reverse
(22)1-2 Accumulator
(23)3rd Accumulator
(24)Governor
(30)Seal, Drain Back
(31)Void
(31)Void
(31)Void
(31)Void
(50)Cup Plug (Reverse)
(109)Drive Sprocket Support
(124)Cup Plug (3rd Clutch Fluid)
(602)Driven Sprocket Support
Figure 13:

Forward Clutch Assembly Fluid Passages
Object Number: 25687 Size: MF
(1)Input Shaft
(2)Steel Sleeve
(6)Lube
(11)Drive
(622)Input Shaft Fluid Seal Rings
(623)Input Shaft Bushing
(624)Forward Clutch Housing Assembly
(626)Forward Clutch Piston Lip Seal (Outer)
(627)Forward Clutch Piston Lip Seal (Inner)
(628)Forward Clutch Piston Insert
(629)Forward Clutch Piston
(630)Forward Clutch Release Spring Guide
(631)Forward Clutch Retainer and Spring Assembly
(632)Forward Clutch Retainer and Spring Asm. Snap Ring
Figure 14:

Case Fluid Passages (Oil Pan Side)
Object Number: 25692 Size: MF
(12)Second Clutch
(18)Low/Reverse
(23)3rd Accumulator
(24)Governor
(119)Plug, Governor Pressure Pickup
(138)Pipe, Governor Oil
(139)Pipe, Low/Reverse