Power Steering Noise Or Fluid Leak From Power Steering Pump, Gear Or High Pressure Hose During Extreme Low Temperature Operation (Replace Power Steering Fluid) (12-02-32-002B)
Publication date: 2020-06-05Reference number: 12-02-32-002B
Supersedes refnos: 12-02-32-002, 12-02-32-002A
POWER STEERING NOISE OR FLUID LEAK FROM POWER STEERING PUMP, GEAR OR HIGH PRESSURE HOSE DURING EXTREME LOW TEMPERATURE OPERATION (REPLACE POWER STEERING FLUID)
TECHNICAL SERVICE BULLETIN
| Affected Model(s): | 2014 and Prior GM Passenger Cars and Light Duty Trucks 2015-2021 Chevrolet Express 2015-2021 GMC Savana |
| Supercedes: | This bulletin is being revised to add the 2015-2021 Chevrolet Express and GMC Savana. Please discard Corporate Bulletin Number 12-02-32-002A. |
CONDITION
Some customers may comment that their vehicle is experiencing noise or a fluid leak from the power steering pump, gear or high pressure side power steering hose during extreme low outdoor temperature operation.
CAUSE
During extremely low temperatures, -30°C (-22°F) or lower, the power steering fluid may thicken and the power steering system pressures may rise, potentially causing noise or damage to various components.
INSTRUCTIONS
To resolve this condition, replace any damaged power steering system components, flush the power steering system and refill with Cold Climate power steering fluid. Refer to Power Steering in SI.
In some extreme operating conditions, this fluid may not correct the condition. An alternate power steering fluid is available for a select group of vehicles, please refer to the latest version of Bulletin Number 13-02-32-001 for additional information.
PARTS INFORMATION
| Part Number | Description |
|---|---|
| 12345866 (in Canada use 10953484) | 16 oz. bottle Power Steering Fluid - Cold Climate |
| 12345867 (in Canada use 10953471) | 32 oz. bottle Power Steering Fluid - Cold Climate |