Home ReviewsRefund
Home/Chevrolet/Silverado Classic 2500 HD/Chevrolet Silverado Classic 2500 HD (2007-2007)/Repair manual/Manual & Power Steering/Power Steering System: Specifications
Contents Wiring diagrams Section: Manual & Power Steering All sections

Power Steering System: Specifications Chevrolet Silverado Classic 2500 HD

Manual & Power Steering 14 illustrations ~110 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Accessory Mounting Bracket Bolts50 N.m37 lb ft
Accessory Mounting Bracket Nuts41 N.m30 lb ft
Ball Guide Screws6 N.m53 lb in
Battery Junction Block Retaining Bolt9 N.m80 lb in
Connector Fitting Assembly75 N.m55 lb ft
Coupling Shield and Lock Nut109 N.m80 lb ft
Cylinder End Fitting27 N.m20 lb ft
Filler Neck Retaining Nut25 N.m18 lb ft
Front Power Steering Pump Mounting Bolts50 N.m37 lb ft
Gear To Frame Bolts (Non-Rack and Pinion)150 N.m110 lb ft
Gear To Frame Bolts (Rack and Pinion)185 N.m136 lb ft
Inner Tie Rod to Steering Gear100 N.m74 lb ft
Intermediate Shaft Coupling Pinch Bolt45 N.m33 lb ft
Outer Tie Rod to the Steering Knuckle50 N.m37 lb ft
Pitman Arm to Gear Nut250 N.m184 lb ft
Pitman Arm to Relay Rod Nut62 N.m46 lb ft
Pitman Shaft Cover Bolts (670 Gear)62 N.m46 lb ft
Pitman Shaft Cover Bolts (700 Gear)60 N.m45 lb ft
Power Steering Cooler Mounting Bolts5 N.m44 lb in
Power Steering Mounting Bolts and Nut50 N.m37 lb ft
Power Steering Pump Mounting Bracket Bolts (6.6L Diesel)46 N.m34 lb ft
Power Steering Pump Mounting Bolts (Parallel Hybrid Truck)25 N.m18 lb ft
Power Steering Pump Mounting Bracket Bolts (Parallel Hybrid Truck)25 N.m18 lb ft
Power Steering Pump Pressure Hose Fitting (Parallel Hybrid Truck)32 N.m24 lb ft
Power Steering Pump Mounting Studs58 N.m43 lb ft
Power Steering Pump Wiring Harness Ground Bolt9 N.m80 lb in
Power Steering Rear Bracket Retaining Nuts50 N.m37 lb ft
Pressure Hose Connection (At Gear)28 N.m20 lb ft
Pressure Hose Connection (At Pump)28 N.m20 lb ft
Rack and Pinion Ground Strap Retaining Bolt10 N.m89 lb in
Rack and Pinion Adjuster Lock Nut68 N.m50 lb ft
Rack and Pinion Cylinder Fittings28 N.m20 lb ft
Rack and Pinion Hex Lock Nut30 N.m22 lb ft
Rack and Pinion Piston Plug150 N.m111 lb ft
Rear Pump Mounting Bolt50 N.m37 lb ft
Stub Shaft Housing Bolts63 N.m46 lb ft
Valve End Fitting17 N.m13 lb ft
Variable Assist Steering Actuator62 N.m46 lb ft

Fastener Tightening Specifications

Power Steering Pump Specifications

VehicleEngine CodeEngine SizeHigh Flow (Liters per Minute)High Flow (Gallons per Minute)Pressure Relief (kPa)Pressure Relief (PSI)
C15 Pickup/Crew Cab w/vacuum brakes, 7200 GVWLU3 LR4 LM7/L594.3L 4.8L 5.3L10.9/12.42.9/3.39825/105141425/1525
K 15 Pickup w/vacuum brakes, 7200 GVWLU3 LR4 LM7/L594.3L 4.8L 5.3L10.2/11.72.7/3.19825/105141425/1525
K 15, Pickup/Sierra Denali/Silverado SS w/20" tires/Crew Cab w/vacuum brakesLQ46.0L1.32/14.73.5/3.99825/105141425/1525
C/K 25/25HD/35, Pickup/Chassis/Crew Cab w/hydroboostLQ4 LLY L186.0L 6.6L Diesel 8.1L13.2/14.73.5/3.99825/105141425/1525

Power Steering Pump Specifications

Scheme 1

Scheme 1: Power Steering Schematics
Scheme 1: Power Steering Schematics

Scheme 2

Scheme 2
Scheme 2

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4: Power Steering Component Views
Scheme 4: Power Steering Component Views
CalloutComponent Name
1Power Brake Booster
2Brake Pedal Position Sensor
3C205
4Accelarator Pedal Position (APP) Sensor
5Throttle Actuator Control (TAC) Module Connector

Scheme 5

Scheme 5
Scheme 5
CalloutComponent Name
142V Harness
2Engine Harness
3Battery Cable Bracket
4Electro Hydraulic Power Steering (EHPS) Module

Scheme 6

Scheme 6
Scheme 6
CalloutComponent Name
1Steering Column
2C201
3Steering Wheel Speed/Position Sensor

Scheme 7

Scheme 7: Brake Pedal Position Sensor
Scheme 7: Brake Pedal Position Sensor
Connector Part Information OEM: 15332132 Service: 88953364 Description: 3-Way F GT 150 Series (BK)
Terminal Part Information Terminal/Tray: 12191812/19 Core/Insulation Crimp: C/A Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Brake Pedal Position Sensor Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
AOG56885-Volt Reference
BYE5066Brake Pedal Position Sensor Signal
CGY/BK5689Low Reference

Brake Pedal Position Sensor Terminal Identification

Scheme 8

Scheme 8: Electro-Hydraulic Power Steering (EHPS) C1
Scheme 8: Electro-Hydraulic Power Steering (EHPS) C1
Connector Part Information OEM: 15355404 Service: 88986593 Description: 2-Way F Maxi 800 Sealed (BK)
Terminal Part Information Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

Electro-Hydraulic Power Steering (EHPS) C1 Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
ARD5875EHPS 42-Volt Battery
BBK5691EHPS 42-Volt Ground

Electro-Hydraulic Power Steering (EHPS) C1 Terminal Identification

Scheme 9

Scheme 9: Electro-Hydraulic Power Steering (EHPS) C2
Scheme 9: Electro-Hydraulic Power Steering (EHPS) C2
Connector Part Information OEM: 12129225 Service: See Catalog Description: 24-Way F Micro-Pack 100 Series, Sealed (NA)
Terminal Part Information Terminal/Tray: 12084913/5 Core/Insulation Crimp: W/W Release Tool/Test Probe: 12122523/J-35616-6 (BN)

Electro-Hydraulic Power Steering (EHPS) C2 Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1Not Used
2BK/WH1851Ground
3-4Not Used
5OG56885-Volt Reference
6YE5066Brake Pedal Position Sensor Signal
7GY/BK5689Low Reference
8TN2501High Speed GMLAN Serial Data Bus
9TN/WH2500High Speed GMLAN Serial Data Bus+
10BK/WH451Ground
11PK1020Ignition 0 Voltage
12Not Used
13L-GN1763Steering Wheel Position Signal A
14Not Used
15L-BU1764Steering Wheel Position Signal B
16-17Not Used
18YE/BK5696EHPS Interlock Loop Signal
19YE/BK5696EHPS Interlock Loop Signal
20TN2501High Speed GMLAN Serial Data Bus
21TN/WH2500High Speed GMLAN Serial Data Bus+
22PK1839Ignition 1 Voltage
23-24Not Used

Electro-Hydraulic Power Steering (EHPS) C2 Terminal Identification

Scheme 10

Scheme 10: Steering Wheel Speed/Position Sensor
Scheme 10: Steering Wheel Speed/Position Sensor
Connector Part Information OEM: 12052444 Service: 12101874 Description: 8-Way F Micro-Pack 100 Series (BK)
Terminal Part Information Terminal/Tray: See Terminal Repair Kit Core/Insulation Crimp: See Terminal Repair Kit Release Tool/Test Probe: See Terminal Repair Kit

Steering Wheel Speed/Position Sensor Connector & Terminal Parts Information

PinWire ColorCircuit No.Function
1GY10565-Volt Reference
2BK1835Low Reference
3L-GN1763Steering Wheel Position Sensor Phase A Signal
4L-BU1764Steering Wheel Position Sensor Phase B Signal
5WH1765Steering Wheel Position Marker Pulse Signal
6L-BU1059Steering Wheel Position Sensor Signal
7BN41Ignition 3 Voltage
8BK/WH1851Ground

Steering Wheel Speed/Position Sensor Terminal Identification

Scheme 11

Scheme 11: Power Steering Gear Disassembled View (670 Gear)
Scheme 11: Power Steering Gear Disassembled View (670 Gear)
CalloutComponent Name
1Hexagon Bolt
2Lash Adjuster Nut
3Pitman Shaft and Cover Assembly
4O-Ring Seal
5Steering Gear Housing Assembly
6O-Ring Seal
7O-ring Seal
8Stub Shaft Housing (680 Gear)
9Hexagon Bolt
10Stub Shaft Housing (670 Gear)
11Hexagon Bolt
12Needle Bearing Assembly
13Pitman Shaft Seal
14Backup Washer
15Retaining Ring
16Dust Seal
17Pitman Shaft Boot
18Pitman Arm Assembly
19Lock Washer
20Pitman Arm Nut

Scheme 12

Scheme 12: Power Steering Gear Disassembled View (700 Gear)
Scheme 12: Power Steering Gear Disassembled View (700 Gear)
CalloutComponent Name
1Retaining Ring
2Plug
3O-ring Seal
4Side Cover
5Adjuster Lock Nut
6Bolt
7Gasket
8Pitman Shaft
9Steering Gear Housing End Plug
10Teflon Ring
11O-ring Seal
12Rack Piston
13Balls
14Ball Guide
15Clamp
16Screw
17Housing
18Check Valve
19Flat Race
20Thrust Bearing
21Flat Race
22Worm Shaft
23Needle Bearing
24Pitman Shaft Seal
25Backup Washer
26Retaining Ring
27Dust Seal
28Pitman Shaft Boot
29Pitman Shaft Arm
30Lock Washer
31Nut
32Seal
33Stub Shaft
34Valve Spool
35Seal
36Valve Body
37O-ring Seal
38Valve Body Ring
39O-ring Seal
40Valve Body Ring
41O-ring Seal
42Valve Body Ring
43Coupling Shield Retainer and Lock Nut
44Adjuster Nut Assembly
45O-ring Seal
46Thrust Support Assembly

Scheme 13

Scheme 13: Power Steering Gear Disassembled View (Rack and Pinion)
Scheme 13: Power Steering Gear Disassembled View (Rack and Pinion)
CalloutComponent Name
1Hexagon Torque Prevailing Nut
2Tie Rod Seal
3Outer Tie Road Assembly
4Hexagon Jam Nut
5Tie Rod End Clamp
6Rack and Pinion Boot
7Boot Clamp
8Inner Tie Rod Assembly
9Shock Dampener Ring
10Adjuster Plug Lock Nut
11Cylinder Line Assembly (RH)
12Cylinder Line Assembly (LH)
13O-Ring Seal
14O-Ring Seal
15Rack and Pinion Gear Assembly (Partial)
16Needle Bearing Annulus Assembly
17Seal Adapter
18Retaining Ring
19Spool Shaft Seal
20Hexagon Lock Nut
21Dust Cover
22Shock Dampener Ring
23Inner Tie Rod Assembly
24Breather Tube
25Boot Clamp
26Rack and Pinion Boot
27Tie Rod End Clamp
28Hexagon Jam Nut
29Outer Tie Rod Assembly
30Tie Rod Seal
31Hexagon Torque Prevailing Nut

Scheme 14

Scheme 14: Power Steering Pump Disassembled View (Regular)
Scheme 14: Power Steering Pump Disassembled View (Regular)
CalloutComponent Name
1Power Steering Pump Housing Seal
2Power Steering Pump
3Power Steering Fluid Reservoir Magnet
4Power Steering Pump Housing Seals
5Power Steering Pump Housing Seal
6Power Steering Pump Flow Control Valve
7Power Steering Pump Flow Control Valve Spring
8Power Steering Fluid Reservoir
9Power Steering Fluid Reservoir Cap
10Power Steering Fluid Reservoir Studs
11Variable Assist Steering Actuator
12Variable Assist Steering Actuator Clip
13Power Steering Pump Flow Control Valve Fitting
14Power Steering Pump Flow Control Valve Seal

More articles — Power Steering System