DIAGNOSIS & TESTING
Vehicle Inspection
There is some noise in all power steering systems. One of the most common is a hissing sound. Hiss is a high
frequency noise similar to that of a water tap being closed slowly. The noise is present in all valves that have a high
velocity fluid passing through an orifice. There is no relationship between this noise and steering performance. The
hissing sound is commonly heard during the following operations:
• Evident at a standstill
• At park with the engine running
• When the steering wheel is at the end of its travel
Loose Steering / Vehicle Leads / Drifts Troubleshooting Chart
CONDITION POSSIBLE CAUSES CORRECTION
Excessive Play In Steering Wheel
· Worn or loose suspension or
steering components.
· Worn or loose wheel bearings.
· Steering gear mounting.
· Gear out of adjustment.
· Worn or loose steering coupler.
· Repair if necessary.
· Repair if necessary.
· Tighten gear mounting bolts to
specification.
· Adjust gear to specification.
· Repair if necessary.
Vehicle Pulls To One Side During
Braking
· Tire pressure.
· Air in brake hydraulics system.
· Worn brake components.
· Adjust tire pressure.
· Bleed brake system.
· Repair if necessary.
Vehicle Leads Or Drifts From
Straight Ahead Direction On
Uncrowned Road.
· Tire pressure.
· Radial tire lead.
· Brakes dragging.
· Wheel alignment.
· Weak or broken spring.
· Loose or worn steering/suspension
components.
· Adjust tire pressure.
· Cross front tires.
· Repair if necessary.
· Align vehicle.
· Replace spring.
· Repair if necessary.
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Chery Automobile Co., Ltd.
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