Fastener Tightening Specifications
| Application | Specification | |
|---|---|---|
| Metric | English | |
| Adjuster Plug Lock Nut | 68 N.m | 50 lb ft |
| Cylinder End Fitting | 27 N.m | 20 lb ft |
| Cylinder Valve End Fitting | 17 N.m | 13 lb ft |
| Flow Control Valve Fitting | 75 N.m | 55 lb ft |
| Inner Tie Rod Housing | 100 N.m | 74 lb ft |
| Lower Intermediate Shaft to Power Steering Gear Input Shaft Pinch Bolt | 40 N.m | 30 lb ft |
| Outer Tie Rod Retaining Nut | 60 N.m | 44 lb ft |
| Outer Tie Rod To the Inner Tie Rod Jam Nut | 75 N.m | 55 lb ft |
| Power Steering Cooler Mounting Bolts | 20 N.m | 15 lb ft |
| Power Steering Gear to the Frame Mounting Bolts | 110 N.m | 81 lb ft |
| Power Steering Hose Assembly to the Frame Brackets Mounting Bolts | 10 N.m | 89 lb in |
| Power Steering Hose Assembly to the Front Crossmember Bracket Mounting Bolt | 10 N.m | 89 lb in |
| Power Steering Hose Assembly to the Power Steering Gear Retaining bolt | 12 N.m | 106 lb in |
| Power Steering Hose Assembly (Pressure Hose) to the Power Steering Pump | 30 N.m | 22 lb ft |
| Power Steering Hose Assembly to the Wheel Well Bracket Mounting Bolt | 10 N.m | 89 lb in |
| Power Steering Pump Bracket Mounting Bolts | 50 N.m | 37 lb ft |
| Power Steering Pump Mounting Bolts | 25 N.m | 18 lb ft |
Fastener Tightening Specifications
Power Steering Pump Specifications
| Vehicle | Engine Code | Engine Size | High Flow (Liters per Minute) | High Flow (Gallons per Minute) | Pressure Relief (kPa) | Pressure Relief (PSI) |
|---|---|---|---|---|---|---|
| TrailBlazer, Envoy | LL8 | 4.2L | 10.2/11.7 | 2.7/3.1 | 10342/11032 | 1500/1600 |
| TrailBlazer Ext, Envoy Ext | LL8 | 4.2L | 11.7/13.2 | 3.1/3.5 | 10342/11032 | 1500/1600 |
| TrailBlazer Ext, Envoy Ext | LM4 | 5.3L | 11.7/13.2 | 3.1/3.5 | 10342/11032 | 1500/1600 |
| Rainer | LM4 | 5.3L | 10.2/11.7 | 2.7/3.1 | 10342/11032 | 1500/1600 |
Power Steering Pump Specifications
Scheme 1
| Callout | Component Name |
|---|---|
| 1 | Torque Prevailing Nut |
| 2 | Outer Tie Rod Assembly |
| 3 | Hexagon Jam Nut |
| 4 | Tie Rod End Clamp |
| 5 | Rack and Pinion Boot |
| 6 | Boot Clamp |
| 7 | Inner Tie Rod Assembly |
| 8 | Shock Dampener Ring |
| 9 | External TORX® Screw |
| 10 | Cylinder Line Retaining Plate |
| 11 | O-ring Seal |
| 12 | Cylinder (RH) Line |
| 13 | Cylinder (LH) Line |
| 14 | O-ring Seal |
| 15 | Rack and Pinion Gear (Partial) |
| 16 | Shock Dampener Ring |
| 17 | Inner Tie Rod Assembly |
| 18 | Boot Clamp |
| 19 | Rack and Pinion Boot |
| 20 | Tie Rod End Clamp |
| 21 | Hexagon Jam Nut |
| 22 | Outer Tie Rod Assembly |
| 23 | Torque Prevailing Nut |
Scheme 2
| Callout | Component Name |
|---|---|
| 1 | Hydraulic Pump Reservoir Assembly (Typical) |
| 2 | Reservoir Capstick Assembly |
| 3 | O-Ring Seal |
| 4 | Flow Control Spring |
| 5 | Control Valve Assembly |
| 6 | O-Ring Seal |
| 7 | O-Ring Union Fitting |
| 8 | Hydraulic Pump Housing Assembly |
| 9 | Reservoir Retaining Clip (RH) |
| 10 | Reservoir Retaining Clip (LH) |
Begin the system diagnosis by reviewing the system Description and Operation. Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Power Steering System in order to identify the correct procedure for diagnosing the system and where the procedure is located.
Review the system description and operation in order to familiarize yourself with the system functions. Refer to Power Steering System Description and Operation (w/o Electro-Hydraulic Steering) .