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Chery S11 / Chery QQ. Manual - part 45

Chery QQ Service Manual Chassis System

Steering system fizzy noise

Step

Measure

Yes

Identification: Fizzy noise is heard during Engine running or steering wheel turning

If the fizzy noise becomes loud When
comparing with other normal vehicle?

TO step 2

System perfect

If the fizzy noise becomes loud? If
steering fluid level is too low?

TO step3

TO step4

Fill fluid into the system.
Does customer still complain?

TO step1

System perfect

Is the noise from inside of vehicle?

TO step5

TO step7

The noise may enter passenger
compartment through outlet of front
instrument panel.

TO step6

TO step7

Repair or replace steering pillar seal.
Does customer still complain?

TO step1

System perfect

Make sure the lay for steering hose and
pipe is correct ( not touch with front
instrument panel).
Repair or replace hose and pipe if
necessary.
Does customer still complain?

TO step8

System perfect

Confirm The source of noise. Check
steering pump and steering institute.
Repair or replace parts if necessary.
Does customer still complain?

TO step1

System perfect

Steering system chatter noise

State

Measure

Power steering system piping wear

Ensure power steering wear refer hydraulic

piping replace

Steering box looseness

Fixture

steering box nut torque refer

fastener specifications

Tie rod one end or both ends looseness

Repair or replace tie rod end if necessary

Steering universal joint looseness

Repair or replace the universal joint refer if

necessary

100

Chery QQ Service Manual Chassis System

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.

101

Chery QQ Service Manual Chassis System

Power steering pump replace

Disassembly procedure
1. Remove transmission belt and loosen adjust
bolts

102

Chery

2. Remove high-pressure hose and pipe from
steering pump. The fluid will flow into the
container. Please observe the safety regulation.
3. Remove the pump from front support.

Steps of installation

1.  Put the pump on the support]
Fixture: 22-28Nm.
2.  Install strengthen transmission belt.
3.    Connect high-pressure hose and pipe on
steering pump again.
Power steering
Disassembly procedure
1. Loosen two connectors and remove out.
2. Remove tank from support.

Points of attention
Residual fluid will flow out into the container.
Steps of installation
1. Put the tank into support and screw bolts.
Connect two hoses and fix clamp.
2. Check if any leakage in system.

Power steering liquid

Chery QQ Service Manual Chassis System

Rinse power steering system

103

Attention: Use suitable steering fluid when
filling or replacing fluid, otherwise it will
damage hose and seal.

1.  Lift vehicle to run wheel freely.
2.  Suck out fluid from tank.
3.  Remove fluid hose from connector.
4.  Insert outlet of hose into tank.
5.  Put hose into container.
6.  Run engine at idle. Ask assistant to fill
fluid into tank.
7.    Turn steering wheel left and right.
Attention: Don’t turn to end for starring
wheel to keep on. Otherwise it will cause
over heat for system or damage pump and
pivot.
8.  Continues to drain out all old fluid.
9.  Resin system with 0.9L new fluid.
10. Check if all fluid is drained out.
11. Remove the cock of pump.
Points of attention:
Don’t use the fluid drained out.
12. Connect hose and tank.
13. Turn off engine.
14. Fill fluid into tank.
15.   Check if any leak in tank.
16. Drain out air of system.

Power steering box replace
Disassembly procedure
1. Remove 3 bolts first.

2. Loosen nuts on hose. Note to collect fluid.

3. Remove bolts on left/right transverse lever.

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