NHTSA ID Number: 10202385
Manufacturer Communication Number: PIT5544E
Summary
This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.
Condition
Some customers may comment on a hydraulic rush or flow type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.
SEOCONTENT-START
Bulletin No.: PIT5544E Published date: 09/1/2021 Preliminary Information PIT5544E Normal Characteristic – Hydraulic Rush Noise from Power Steering Gear Models Brand: Chevrolet
GMC Model: Silverado 2500/3500 Sierra 2500/3500 Model Years: 2016 – 2022 2016 – 2022 VIN: from to All All All All Engine: All All All All Transmissions: Involved Region or Country Additional Options (RPO) Condition North America NV8 Some customers may comment on a hydraulic rush or flow type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off. Version History Version 5 1/18/2017 – Created on 10/13/2017 – Updated Model Years 10/12/2018 – Updated Model Years Modified 10/14/2019 – Updated Model Years 3/5/2021 – Updated Model Years 9/1/2021 – Updated Model Years
SEOCONTENT-END
28 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| CHEVROLET | SILVERADO 2500 | 2016-2022 |
| CHEVROLET | SILVERADO 3500 | 2016-2022 |
| GMC | SIERRA 2500 | 2016-2022 |
| GMC | SIERRA 3500 | 2016-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5544E
Published date: 09/1/2021
NHTSA ID Number: 10147373
Manufacturer Communication Number: PIT5544B
Summary
This Preliminary information communicates information on a hydraulic rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5544B
Published date: 10/12/2018
- Auto & Truck Maintenance
- Country of manufacture: United States
- Manufacturer: VALVOLINE
- High quality power steering fluid and conditioner
- Stops Noise
- Stops slipping
- Helps prevent unusual wear
- Protects seals
- The service solution for ALL European, North American, and Asian vehicles (Honda fluid recommended for Honda/Acura vehicles)
- Reduces friction and protects seals and hoses - extending the life of the power steering system
- Provides excellent cold and high temperature performance eliminating "morning sickness" stiffness
- Excellent for use in electric hydraulic systems
- Cleans and frees sticky turbines and pumps
- 50,000 mile fluid life
- Anti-wear protection increases system life; protects against pump failure, squeals and clogs; corrosion protection for metals, rubber & gasket components
- For use in all manufacturers
- Conventional formula; for use in all manufacturers
- Size: 32 oz.
- Engineered Stop Leak Protection: Specially formulated to condition and rejuvenate worn seals, helping stop existing leaks and preventing future fluid loss for smoother steering performance
- Long-term system durability: Provides advanced protection against wear and tear in the power steering system, ensuring reliable operation and extending component life under demanding conditions
- Anti-foaming and oxidation control: Reduces fluid breakdown, prevents harmful foam formation, and resists oxidation, keeping the steering system clean and responsive over time
- Seal Conditioning Benefits: Rejuvenates aged seals, restores flexibility, and helps reduce cracking or wear that commonly leads to power steering leaks.
- Recommended Applications: Suitable for ABS, disc, and drum braking systems meeting GM 1050017, Chrysler Spec 5931, and Ford Spec M2C195-A requirements
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