Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2022 GMC Hummer EVFACTORY OEM SERVICE PROCEDURE
Fastener Specifications
Electric Belt Drive Rack and Pinion Steering Gear
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Gear Bolt [4x] | - | - | 5.5 N.m (49 lb in) | Power Steering Control Module Wiring Harness Replacement |
| 2 | Steering Gear Boot Inner Clamp [2x] | Yes | - | - | Steering Gear Boot Replacement |
| 3 | Steering Gear Bolt- Upper [2x] | - | - | First Pass: 100 N.m (74 lb ft) Second Pass: 30-45 degrees |
Electric Belt Drive Rack and Pinion Steering Gear Replacement |
| 4 | Steering Gear Bolt- Lower [2x] | - | - | First Pass: 240 N.m (177 lb ft) Second Pass: 90-105 degrees |
Electric Belt Drive Rack and Pinion Steering Gear Replacement |
Power Steering Assist Motor
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Gear Bolt [4x] | Yes | - | 28 N.m (21 lb ft) | Power Steering Assist Motor Replacement |
| 2 | Electric Belt Drive Rack and Pinion Steering Gear Belt | Yes | - | - | Power Steering Assist Motor Replacement |
| 3 | Power Steering Assist Motor Seal | Yes | - | - | Power Steering Assist Motor Replacement |
Power Steering Assist Motor Housing
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Gear Bolt [6x] | Yes | - | 28 N.m (21 lb ft) | Power Steering Assist Motor Replacement |
| 2 | Power Steering Assist Motor Seal | Yes | - | - | Power Steering Assist Motor Replacement |
Steering Gear Idler Pulley
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Gear Idler Pulley | - | - | 15 N.m (11 lb ft) | Power Steering Assist Motor Replacement |
Steering Gear Nut
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Gear Nut [2x] | - | - | - | Electric Belt Drive Rack and Pinion Steering Gear Replacement |
Steering Linkage
| Callout | Component Name [Component Quantity] | Single Use Fastener/Component | Thread Locking Adhesive Required | Specification | Procedure |
|---|---|---|---|---|---|
| Metric (English) | |||||
| 1 | Steering Linkage Outer Tie Rod Nut | - | - | First Pass: 35 N.m (26 lb ft) Second Pass: 85-100 degrees |
Steering Linkage Outer Tie Rod Replacement |
| 2 | Steering Linkage Inner Tie Rod | - | - | 140 N.m (103 lb ft) | Steering Linkage Inner Tie Rod Replacement |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.