GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Silverado - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Fluid Passages
Figure 1:

Torque Converter Housing - Fluid Pump Cover Side
Object Number: 1654192 Size: LF
(2)Line
(4)Converter Feed
(5)Converter Feed Limit
(6)TCC Release
(7)TCC Apply
(8)Cooler Feed
(9)Center Lube
(10)Regulator Apply
(38)PCS TCC
(49)PCS Line
(51)Exhaust
(52)Void
(55)Vent
(56)Torque Converter Seal Drainback
Figure 2:

Fluid Pump Cover - Torque Converter Housing Side
Object Number: 1654195 Size: MF
(1)Suction
(2)Line
(4)Converter Feed
(5)Converter Feed Limit
(6)TCC Release
(7)TCC Apply
(8)Cooler Feed
(9)Center Lube
(10)Regulator Apply
(38)PCS TCC
(49)PCS Line
(51)Exhaust
(52)Void
(55)Vent
Figure 3:

Fluid Pump Cover - Case Side
Object Number: 1654197 Size: MF
(1)Suction
(2)Line
(9)Center Lube
(10)Regulator Apply
(11)Compensator Feed
(14)3-5 Reverse Clutch
(26)1-2-3-4 Clutch
(34)4-5-6 Clutch
(38)PCS TCC
(49)PSC Line
(51)Exhaust
(52)Empty
(55)Ventilate
Figure 4:

Case - Top Channel Plate Side
Object Number: 1654198 Size: MF
(9)Center Lube
(29)CBR1
(30)CBR
(46)26 Clutch
(52)Void
Figure 5:

Control Valve Upper Body Assembly - Case Side
Object Number: 1654200 Size: MF
(2)Line
(9)Center Lube
(10)Regulator Apply
(11)Compensator Feed
(14)3-5 Reverse Clutch
(26)1-2-3-4 Clutch
(29)CBR1
(30)CBR
(34)4-5-6 Clutch
(38)PCS TCC
(46)2-6 Clutch
(49)PCS Line
(51)Exhaust
(52)Empty
Figure 6:

Control Valve Upper Body Assembly - Bottom Channel Plate Side
Object Number: 1654202 Size: MF
(2)Line
(9)Center Lube
(10)Regulator Apply
(11)Compensator Feed
(12)Actuator Feed Limit
(13)Reverse
(14)3-5 Reverse Clutch
(15)3-5 Reverse Clutch Feedback
(16)CSV2 Enable
(17)Solenoid 1
(19)CSV3 Enable
(21)Drive 1-6
(24)1-2-3-4 Clutch DFLT
(25)1-2-3-4 Clutch Feed
(26)1-2-3-4 Clutch
(27)1-2-3-4 Clutch Feedback
(29)CBR1
(30)CBR
(31)CBR1/4-5-6 Clutch Feed
(32)CBR1 Feedback
(34)4-5-6 Clutch
(35)CSV2 Latch
(37)3-5 Reverse Feed
(38)PCS TCC
(39)PCS 1-2-3-4 Clutch
(40)PS4
(41)PS1
(42)PS3
(43)PS5
(44)2-6 Clutch/1-2-3-4CL Feed
(45)PCS 3-5 Rev Clutch
(46)2-6 Clutch
(47)PCS 2-6 Clutch
(48)PCS CBR1/4-5-6 Clutch
(49)PCS Line
(50)Exhaust BF
(51)Exhaust
(52)Empty
(53)3-5 Rear Feed
Figure 7:

Control Valve Upper Body Assembly - Control Solenoid Valve Assembly Side
Object Number: 1654203 Size: MF
(12)Actuator Feed Limit
(17)Solenoid 1
(18)Solenoid 2
(38)PCS TCC
(39)PCS 1-2-3-4 Clutch
(40)PS4
(41)PS1
(42)PS3
(43)PS5
(45)PCS 3-5 Rev Clutch
(47)PCS 2-6 Clutch
(48)PCS CBR1/4-5-6 Clutch
(49)PCS Line
(51)Exhaust
(52)Empty
Figure 8:

Control Valve Lower Body Assembly - Control Valve Upper Body Assembly Side
Object Number: 1654204 Size: MF
(2)Line
(9)Center Lube
(10)Regulator Apply
(11)Compensator Feed
(12)Actuator Feed Limit
(13)Reverse
(14)3-5 Reverse Clutch
(15)3-5 Reverse Clutch Feedback
(16)CSV2 Enable
(17)Solenoid 1
(18)Solenoid 2
(19)CSV3 Enable
(20)Drive
(21)Drive 1-6
(22)Drive Brake
(23)1-2-3-4 Clutch DFLT Feed
(24)1-2-3-4 Clutch DFLT
(25)1-2-3-4 Clutch Feed
(26)1-2-3-4 Clutch
(27)1-2-3-4 Clutch Feedback
(28)CBR1/CBR Feed
(29)CBR1
(30)CBR
(31)CBR1/4-5-6 Clutch Feed
(32)CBR1 Feedback
(33)4-5-6 Clutch Feed
(34)4-5-6 Clutch
(35)CSV2 Latch
(36)Drive Brake
(37)3-5 Reverse Feed
(38)PCS TCC
(39)PCS 1-2-3-4 Clutch
(40)PS4
(41)PS1
(42)PS3
(43)PS5
(44)2-6 Clutch/1-2-3-4 CL Feed
(45)PCS 3-5 Rev Clutch
(46)2-6 Clutch
(47)PCS 2-6 Clutch
(48)PCS CBR1/4-5-6 Clutch
(49)PSC Line
(50)Exhaust BF
(51)Exhaust
(52)Empty
(54)3-5 Clutch Reverse Feed
Figure 9:

Control Valve Body Spacer Plate Assembly - Bottom Channel Plate Side
Object Number: 1654205 Size: MF
(2)Line
(8)Cooler Feed
(9)Center Lube
(10)Regulator Apply
(11)Compensator Feed
(12)Actuator Feed Limit
(13)Reverse
(14)3-5 Reverse Clutch
(15)3-5 Reverse Clutch Feedback
(16)CSV2 Enable
(17)Solenoid 1
(18)Solenoid 2
(19)CSV3 Enable
(21)Drive 1-6
(24)1-2-3-4 Clutch DFLT
(25)1-2-3-4 Clutch Feed
(26)1-2-3-4 Clutch
(27)1-2-3-4 Clutch Feedback
(28)CBR1/CBR Feed
(29)CBR1
(30)CBR
(31)CBR1/4-5-6 Clutch Feed
(32)CBR1 Feedback
(34)4-5-6 Clutch
(35)CSV2 Latch
(36)Drive Brake
(37)3-5 Reverse Feed
(38)PCS TCC
(39)PCS 1-2-3-4 Clutch
(40)PS4
(41)PS1
(42)PS3
(43)PS5
(44)2-6 Clutch/1-2-3-4 CL Feed
(45)PCS 3-5 Rev Clutch
(46)2-6 Clutch
(47)PCS 2-6 Clutch
(48)PCS CBR1/4-5-6 Clutch
(49)PCS Line
(50)Exhaust BF
(51)Exhaust
(53)3-5 Rear Feed
(54)3-5 Clutch Reverse Feed