Power Steering Box Diagnosis; Fizzy Noise; Power Steering Box And Steering Pump Leak; Power Steering Box Diagnosis Procedure - Chery QQ Service Manual

Chery QQ Service Manual

Power steering box diagnosis

Fizzy noise

Some noise will be heard during steering in
fixed place under conventional condition.
Check if any leakage for system.
Check if air in system.
Turn sharply needs too much force in short
time.
Check if any leakage for inner pressure.
Check if the pressure in the pump is nor
enough.
Check if the fluid level is too low.

Power steering box and steering pump leak

Following symptoms show the leakage in
system.
Obvious fluid leak on steering pivot or pump.
Loud noise is heard during park brake or
cooling engine.
Lost power steering when park brake.
Heavy steering.
Check procedure
Go on following steps when check outside
leak in system:
1. Wipe doubt section.
2. Check if too much fluid in the tank.
3. Check if following situations appear in
system.
Air mixed in fluid.
Over flow.
4. Check following parts:
Hose connector.
O-ring
5. Confirm leaking position with following
methods:
5.1 Turn off engine.
5.2 Wipe whole system.
5.3 Check fluid level in tank.
Fill fluid if necessary.
5.4 Start engine.
Points of attention:
Don't turn steering to the end and keep on. It
will damage pump.
5.5 Ask assistant to turn steering left/right for
several times.
5.6 Confirm leaking position and fix.
6. Go to following steps if repairing
6.1 Clean leaking position before removing
6.2 Replace the seal
6.3 Check if the seal is broken.
6.4 Screw bolts to specified torque.
6.5 Fill fluid to system.
Full filling/draining air
6.6 Draining air in system

Power steering box diagnosis procedure

1. Check if any leakage around connector.
2. Replace steering pivot if leak appears
between following parts
Wrest lever
Input shaft
3. Replace pivot if leak appears on driver's
side and is not affected by steering.
4. Replace pivot if leak appears on top cover
and spray fluid when steering turn to left end.
Replace transmission shaft if there are serious
corrosion dots on the shaft.
Clear the shaft surface with cloth if the
corrosion on seal area is tiny.
Replace the shaft if there still is leakage after
clearing.
Suggestion to replace seal
Following parts needs special seal:
Steering pivot
Drive shaft of pump
Go to following steps if one of above leaks
appears:
1. Check seal section.
2. Clear seal section.
3. Replace seal.
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Chery Automobile Co., Ltd
Chassis System