YH4
GRAND
VITARA
3B1-6 POWER STEERING (P/S) SYSTEM
Condition Possible Cause Correction
Vehicle pulls to
one side during
straight driving
Mismatched or uneven tire
Low or uneven tire inflation pressure
Brake dragging in one wheel
Front end alignment out of order
Rear end alignment out of order
Malfunction of control valve in gear box
Replace tire.
Inflate tires to proper pressure or
adjust right & left tires inflation
pressure.
Repair.
Check and adjust front end
alignment.
Check and adjust rear end
alignment.
Replace gear box.
Steering wheel
play is large and
vehicle wanders
Refer to “Diagnosis” in Section 3.
Fluid leakage Loose joints of (hydraulic pressure)
pipes and hoses
Deformed or damaged pipes or hoses
Retighten.
Replace defective part.
Abnormal noise Air drawn in due to insufficient amount of fluid
Air mixed into fluid from pipes or hoses
Slipping (loose) P/S belt
Worn P/S belt
Loose gear box fastening bolt
Loose linkage or joints
Pipes or hoses in contact with part of
vehicle body
Vanes of P/S pump defective
Malfunction of control valve in gear box
Bearing of P/S pump shaft defective
Add fluid and purge air.
Replace pipes or hoses.
Adjust belt tension.
Replace belt.
Retighten bolts.
Retighten.
Install pipes and hoses correctly.
Replace defective part.
Replace gear box.
Replace bearing.
No idle up Power steering pressure switch defective Replace power steering
pressure switch.
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