Condition | Possible Cause | Action |
---|---|---|
Steering wheel feels heavy (at low speed).
|
Fluid deteriorated, low viscosity, different type of fluid mixed
|
Change fluid.
|
Pipes or hoses deformed, air entering through joint
|
Correct or replace.
|
|
Insufficient air bleeding from piping
|
Bleed air.
|
|
Belt worn, lacking in tension
|
Adjust belt tension or replace belt as necessary. (M13 engine model)
Replace bolt. (K9K engine model)
|
|
Tire inflation pressure too low
|
Inflate tire.
|
|
Wheel alignment out of adjustment
|
Adjust front wheel alignment.
|
|
Steering wheel installed improperly (twisted)
|
Install steering wheel correctly.
|
|
Hydraulic pressure failing to rise (See NOTE.)
|
Replace P/S pump.
|
|
Slow hydraulic pressure rise (See NOTE.)
|
Condition | Possible Cause | Action |
---|---|---|
Steering wheel feels heavy momentarily when turning it to the left or right.
|
Air drawn in due to insufficient amount of fluid
|
Add fluid and bleed air.
|
Slipping belt
|
Adjust belt tension or replace belt as necessary. (M13 engine model)
Replace belt. (K9K engine model)
|
|
No idle-up. (M13 engine model)
|
Defective pressure switch
|
Replace pressure switch (terminal set).
|
Condition | Possible Cause | Action |
---|---|---|
Steering wheel returns slowly from turns.
|
Dust or foreign object mixed in fluid
|
Change fluid.
|
Deformed pipes or hoses
|
Correct or replace.
|
|
Steering column installed improperly
|
Install correctly.
|
|
Wheel alignment maladjusted
|
Adjust.
|
|
Linkage or joints not operating smoothly
|
Correct.
|
Condition | Possible Cause | Action |
---|---|---|
Vehicle pulls to one side during straight driving.
|
Low or uneven tire inflation pressure
|
Inflate tire(s) as necessary.
|
Wheel alignment maladjusted
|
Adjust.
|
|
Defective spool valve
|
Replace gear box assembly.
|
|
Steering wheel play is large and vehicle wanders.
|
Loose steering shaft nut
|
Retighten.
|
Loose linkage or joint
|
Retighten.
|
|
Loose gear box fixing bolt
|
Retighten.
|
|
Front wheel bearing worn
|
Replace.
|
|
Fluid leakage.
|
Loose joints of hydraulic pressure pipes and hoses
|
Retighten.
|
Deformed or damaged pipes or hoses
|
Correct or replace.
|
|
Gear box
|
Replace gear box assembly.
|
|
Abnormal noise.
|
Air drawn in due to insufficient fluid
|
Replenish fluid.
|
Air drawn in through pipe or hose joints
|
Retighten or replace.
|
|
Belt slipping (loose)
|
Adjust. (M13 engine model)
Replace. (K9K engine model)
|
|
Worn belt
|
Replace.
|
|
Loose steering linkage
|
Retighten.
|
|
Loose gear box fixing bolt
|
Retighten.
|
|
Loose pitman arm
|
Retighten.
|
|
Pipes or hoses in contact with chassis
|
Correct.
|
|
Defective pump vane
|
Replace pump assembly.
|
|
Malfunction of flow control valve
|
Replace gear box assembly.
|
|
Defective pump shaft bearing
|
Replace pump assembly.
|