Whistling noise
Checks
|
operation, action
|
Check for loose intermediate shaft joints.
|
Tighten the intermediate shaft joints.
|
Make sure that the power steering hose does not come into contact with other parts.
|
Make sure the power steering hose is properly clamped.
|
Rumbling noise in steering gear
Checks
|
operation, action
|
Make sure the power steering hose is not in contact with the body.
|
Make sure the power steering hose is properly clamped.
|
Check if there is enough lubrication in the steering gear.
|
Lubricate the steering gear.
|
Make sure the steering gear is installed correctly.
|
Tighten the nuts and bolts on the steering gear mounting bracket.
|
Check that the outer tie rods are properly installed.
|
Tighten the outer tie rod connections. Replace outer tie rods.
|
Poor return of the steering wheel to the middle position
Checks
|
operation, action
|
Check the contact of the steering wheel with the direction indicator housing.
|
Adjust the position of the turn signal housing.
|
Check that the intermediate shaft joints are not binding or loose.
|
Replace intermediate shaft.
|
Check for proper adjustment and no sticking of the power steering pump flow valve.
|
Replace the power steering pump.
|
Check wheel alignment.
|
Adjust wheel alignment.
|
Check wheel bearings for wear and damage.
|
Replace wheel bearings.
|
Check the correct installation of the intermediate shaft joints.
|
Adjust the intermediate shaft between the steering gear and steering column. Replace intermediate shaft.
|
Check that the outer tie rods and joints are not binding or loose.
|
Tighten the tie rods and joints. Replace tie rods and joints.
|
Check steering adjustment.
|
Perform a straight wheel alignment check.
|
Check that there is no friction between the steering column shaft seal and the shaft.
|
Replace front panel seal.
|
Check that the steering shaft bearings are not seized.
|
Replace stub shaft bearings.
|
Short-term increase in force when turning the wheel quickly
Checks
|
operation, action
|
Check for internal leakage at the power steering pump.
|
Replace the power steering pump.
|
Check for damage or kinks in the hoses.
|
Replace power steering hoses and/or tubes.
|
Check the fluid level in the power steering.
|
Refill the power steering fluid reservoir.
|
Check for proper operation and no sticking of the power steering pump flow valve.
|
Replace the power steering pump.
|
Jerks and shocks on the steering wheel when turning with the engine running.
Checks
|
operation, action
|
Check if the power steering pump is generating high enough pressure.
|
Replace the power steering pump.
|
Check for proper operation and no sticking of the power steering pump flow valve.
|
Replace the power steering pump.
|
Check for slippage in the power steering pump drive belt.
|
Tension the power steering drive belt.
|
Check for air in the power steering system.
|
Bleed the power steering system.
|
Steering vibration when turning at low speed or in place
Checks
|
operation, action
|
Check for air in the power steering system.
|
Bleed the power steering system.
|
Check the tension of the power steering pump drive belt.
|
Tension the power steering drive belt.
|
Excessive kickback on the steering wheel or large play
Checks
|
operation, action
|
Check for air in the power steering system.
|
Bleed the power steering system.
|
Check wheel bearings for wear and damage.
|
Replace wheel bearings.
|
Make sure the steering gear is installed correctly.
|
Tighten the nuts and bolts on the steering gear mounting bracket.
|
Check the correct installation of the intermediate shaft joints.
|
Adjust the intermediate shaft between the steering gear and steering column. Replace intermediate shaft.
|
Check tightness of outer tie rods and ball joints.
|
Tighten the tie rods and joints. Replace tie rods and joints.
|
Heavy steering or insufficient reinforcement (especially when parking)
Checks
|
operation, action
|
Check the correct installation of the intermediate shaft joints.
|
Adjust the intermediate shaft between the steering gear and steering column. Replace connecting flange.
|
Check for proper installation and no sticking of the power steering pump flow valve.
|
Replace the power steering pump.
|
Check if the power steering pump is generating high enough pressure.
|
Replace the power steering pump.
|
Check for internal leakage at the power steering pump.
|
Replace the power steering pump.
|
Check for loose or worn intermediate shaft.
|
Tighten the intermediate shaft. Replace intermediate shaft if required.
|
Check the tension of the power steering pump drive belt.
|
Tension the power steering drive belt.
|
Bench test rack and pinion steering
Dismantling, installation and testing procedure
Note: This setting can also be used to check pressure and flow values.
1. Disconnect and dismantle the power steering gear. See «Rack and pinion steering assembly» in this section.
2. Place the power steering gear on a stand next to the vehicle.
3. Disconnect the high pressure pipe at the point where the hose connects to the pipe. Extend this tube to reach the power steering gear on the stand.
4. Disconnect the return pipe from the power steering fluid reservoir. Extend this tube to reach the power steering gear on the stand.
5. Connect the steering tubes to the power steering gear.
6. Start the engine and let it idle for 10 seconds.
7. Check the fluid level in the power steering. See section 6A, "Power Steering System".
8. Start the engine and rotate the rack and pinion stub shaft a full turn in each direction. Hold the shaft on each stop for 5 seconds.
9. Check for possible leaks. See section 6A, "Power Steering System".
Installation order
1. Turn off the engine.
2. Disconnect the power steering tubes from the steering gear.
3. Remove the extensions and reattach the high pressure and return pipes.
4. Install and attach the power steering gear. See «Rack and pinion steering assembly» in this section.
5. Start the engine and let it idle for 10 seconds.
6. Check the fluid level in the power steering. See section 6A, "Power Steering System".
Power steering providing variable speed-dependent power steering
Power steering system with variable speed based power steering at full power all the time
Step | Operation | Values | Yes | No |
1 |
Perform a basic inspection of the power steering system.
Is the system functioning?
|
-
|
Go to Step 2
|
|
2 |
Does the scan tool display any DTCs?
|
-
|
Skip to section "List of fault codes (DTC) "
|
Go to Step 3
|
3 |
Verify that there are no loose connections on the ABS controller.
Has the cause of the problem been found and corrected?
|
-
|
-
|
Go to Step 4
|
4 |
Is the resistance about 0?
|
≈ 0 ohm
|
Go to Step 5
|
Go to Step 6
|
5 |
Replace or repair damaged wiring.
|
-
|
-
|
-
|
6 |
Replace the SSPS system controller.
|
-
|
-
|
-
|
Variable speed based power steering system continuously at reduced power
Step | Operation | Values | Yes | No |
1 |
Test the controller for an open or short to voltage in the vehicle speed signal circuit.
Has the cause of the problem been found and corrected?
|
-
|
System OK
|
Go to Step 2
|
2 |
Disconnect the SSPS solenoid from the steering gear.
Symptom not resolved?
|
-
|
Go to Step 3
|
|
3 |
Replace the SSPS system controller.
Is the repair finished?
|
-
|
System OK
|
-
|
General functioning
When the ignition is switched on, the signal lamp flashes three times for 3 seconds and then goes out. The SSPS controller is equipped with a self-diagnosis function. When any malfunction occurs, the controller lights a signal lamp and cuts off the current to the solenoid coil, which leads to a heavier steering for safety reasons. DTCs are displayed and cleared with a scan tool.
Diagnostic System Check - Variable Power Steering with Speed
Step | Operation | Values | Yes | No |
1 |
|
-
|
Go to Step 2
|
-
|
2 |
Set the scan tool to display SSPS DTCs.
Does the scan tool display any DTCs?
|
-
|
Go to section "List of fault codes (DTC) "
|
Go to section "Symptoms - Power Steering System"
|