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NHTSA ID Number: 10078483
Manufacturer Communication Number: PI-0814-E
Summary
THIS PRELIMINARY INFORMATION BULLETIN PROVIDES A PROCEDURE TO REPLACE CERTAIN COMPONENTS TO CORRECT A CUSTOMER CONCERN OF A STEERING VIBRATION, FELT THROUGH THE STEERING WHEEL AND VEHICLE STRUCTURE, COMBINED WITH A MOAN TYPE NOISE DUE TO ENGINE FIRING PULSATIONS BEING TRANSMITTED INTO THE STEERING SYSTEM.
14 Affected Products
Vehicles
Parts
| Hose Asm. – Power Steering Gear Inlet | 22922927  |
| Hose Asm. – Evaporative Emission Canister Purge (For Vehicles Built Prior to January 7, 2013 (VIN Breakpoint D6250139) | 22923419 |
| Clip/Clamp (For Vehicles Built Prior to January 7, 2013 (VIN Breakpoint D6250139) | 11562557 |
| Generator Assembly (MY 2010-2012) | 22962097 |
| Generator Assembly (MY 2013–2017) | 22988006 |
SEOCONTENT-START
#PI0814E: Steering Shudder (Vibration) During Slow Speed Maneuvers – (Apr 13, 2016)
| Subject: | Steering Shudder (Vibration) During Slow Speed Maneuvers |
| Models: | 2010-2017 Chevrolet Equinox |
| 2010-2017 GMC Terrain | |
| Equipped with Engine RPO LF1, LFW or LFX | |
| Attention: | This PI also applies to any of the above models that may be Export vehicles. |
This PI has been revised to add the 2016 and 2017 Model Years. Please discard PI0814D.
Condition/Concern
Some customers may comment they are experiencing a steering vibration, felt through the steering wheel and vehicle structure, combined with a moan type noise. This condition is most noticed during low speed parking lot maneuvers or when the vehicle is stationary and the steering wheel is turned.
This condition may be caused by engine firing pulsations being transmitted into the steering system.
Recommendation/Instructions for Vehicles Built Prior to January 7, 2013 (VIN Breakpoint D6250139)
Important: The following repair will make noticeable improvements to the shudder (vibration) condition. However, in most cases it will not completely eliminate a common hydraulic power steering system noise.
This condition can be corrected by replacing the following components: power steering gear inlet hose assembly, generator (alternator) assembly and the emission evaporative hose. The revised power steering hose assembly is longer and provides a dampening quality. The revised generator has an isolation pulley and the revised evaporative hose is designed to clear the revised power steering hose.
Important: When the revised components (hoses) are installed, they must not have contact with the underbody or components. Use care to position the hoses to prevent any contact with other components.
Use the following steps to install the revised components.
- Install the revised generator. Refer to Generator Replacement in SI.
- Install the revised power steering inlet hose. Refer to Power Steering Gear Inlet Pipe/Hose Replacement in SI. Leave the intake manifold cover off.
- Install the revised evaporative emission canister purge hose assembly as follows:
- Disconnect the hose from the evaporative emission canister purge solenoid valve located by the base of the throttle body.
- Disconnect the hose from the chassis to canister evaporative emission line.
It may be necessary to cut the plastic connector on the hose if the blue plastic retention collar cannot be released. A new connector is part of the new hose assembly.
- Remove the existing hose and install the new hose assembly.Route the new hose in a way that avoids contact with chassis and body components. Connect both ends of the hose.
- Install the clip as shown, connecting the new evaporative emission canister purge hose assembly to the black metal cross car brake pipe.
- Inspect the new evaporative emission canister purge hose assembly and the revised power steering inlet hose to ensure no components are coming into contact with the new hose assemblies. If contact is present, loosen and reposition the new hose.
- Fill and bleed the power steering system. Verify the fluid level. Repeat the bleed procedure, if necessary. Refer to Power Steering System Bleeding in SI.
- Reinstall the intake manifold cover.
Road test the vehicle and verify the condition is corrected. After the road test, inspect the components as described in step #5 above.
Recommendation/Instructions for Vehicles Built After January 7, 2013 (VIN Breakpoint D6250139)
Important: The following repair will make noticeable improvements to the shudder (vibration) condition. However, in most cases it will not completely eliminate a common hydraulic power steering system noise.
This condition can be corrected by replacing the following components: power steering gear inlet hose assembly and generator (alternator) assembly. The revised power steering hose assembly is longer and provides a dampening quality. The revised generator has an isolation pulley.
Important: When the revised power steering inlet hose is installed, it must not have contact with the underbody or components. Use care to position the hose to prevent any contact with other components.
Use the following steps to install the revised components.
- Install the revised generator. Refer to Generator Replacement in SI.
- Install the revised power steering inlet hose. Refer to Power Steering Gear Inlet Pipe/Hose Replacement in SI. Leave the intake manifold cover off.
- Fill and bleed the power steering system. Verify the fluid level. Repeat the bleed procedure, if necessary. Refer to Power Steering System Bleeding in SI.
- Reinstall the intake manifold cover.
Road test the vehicle and verify the condition is corrected.
Parts Information
Important: Please order these parts only as needed. Due to a limited supply of parts available, DO NOT order for dealer stock.
| Part Number | Description |
| 22922927 |
Hose Asm. – Power Steering Gear Inlet |
| 22923419 |
Hose Asm. – Evaporative Emission Canister Purge (For Vehicles Built Prior to January 7, 2013 (VIN Breakpoint D6250139) |
| 11562557 |
Clip/Clamp (For Vehicles Built Prior to January 7, 2013 (VIN Breakpoint D6250139) |
| 22962097 |
Generator Assembly (MY 2010-2012) |
| 22988006 |
Generator Assembly (MY 2013–2017) |
Warranty Information
For vehicles repaired under warranty, use:
| Labor Operation | Description | Labor Time |
| 7480028* | Install Revised Generator, Power Steering Gear Inlet Hose And Evap. Hose To Correct Steering Wheel Shudder during Low Speed Maneuvers | 3.2 hrs |
| *This is a unique Labor Operation for Bulletin use only. It will not be published in the Labor Time Guide. | ||
SEOCONTENT-END
Bulletin No.: PI0814E
Date: 13-Apr-2016
To View or Download this Document Click Here
- Protects against wear and pump breakdown caused by abnormal wear, oxidation, and foaming
- Performs even in sub-zero treatment
- Specifically designed for power steering units
- Keeps power-steering systems running smoothly and helps stop or reduce fluid loss caused by leaky seals
- Formulated with high-quality oil and fortified with additives to revitalize dried, shrunken, and hardened seals
- Developed for use in GM, Ford
, Chrysler, and most foreign cars and light trucks - Anti-wear agents protect pump components
- Corrosion inhibitors to protect metal components
, Chrysler, and most foreign cars and light trucks
- High quality power steering fluid and conditioner
- Stops Noise
- Stops slipping
- Helps prevent unusual wear
- Protects seals
- The information below is per-pack only
- Premium full-synthetic formulation specifically engineered for Asian vehicles
- Provides protection against wear, foaming, and corrosion to maintain optimal performance
- Designed for extreme temperatures while also providing excellent operation in low temperatures
- Delivers excellent oxidative stability for extended fluid life
- For 2007 and up Honda and Acura vehicles, Backwards compatible with older Honda and Acura vehicles
- Lubricates and reduces wear in the pump, Prevents rust of the steel parts
- Lubricates and fights wear on the gear faces of the turning mechanism (eg. Rack and pinion)
- Protects and cleans the seals and hoses
- Contains no seal swellers
- 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
- REDUCES NOISE AND SMOOTHES OUT HARD STEERING: A unique dual cavity bottle containing a combination of the best performance additives to repair the most common power steering fluid related problems.
- STOPS LEAKS AND RECONDITIONS RACK & PINION: Power Steering Repair can be used to top-off the existing fluid when low, or add a bottle when changing fluid.
- RESTORES PREFORMANCE: Works on all vehicles, domestic and import.
- ADDS PROTECTION: Compatible with ALL types of power steering fluid or ATF, including petroleum, mineral oil and synthetic formulas.
- REPAIR-IT: Power Steering Repair-It works with all types of power steering fluid or ATF
- Adds Lubricity to help stop wear and improve performance
- Seals and helps prevent small leaks
- Foam inhibitors help extend fluid life
- Keeps seals and O-rings pliable
- Prevents corrosion and squealing under severe conditions
- Protects against pump breakdown
- Not for use in Honda or Acura vehicles
- 1 bottle treats 4 to 5 quarts of oil
- Stops and seals steering fluid leaks
- Works with all types of power steering leaks
- Part number: 1630
Last update on 2025-04-16 / Affiliate links / Images from Amazon Product Advertising API
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I own a 2016 Equinox LTZ and was experiencing the vibration and noise as stated. The recommendations for changing certain parts was completed in January of 2018. It is still making the same noise and vibration sometimes it even seems worse. Any advice on what to do now.
Hi Billie,
I have the same issue and I’ve been to 2 dealerships that continue to say no fault found. Have you had any luck with solving your issue?
Thanks!