2009 CHERY TIGGO power steering

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The power steering pump is a constant flow rate and displacement vane type pump. The pump reservoir supplies
fluid to the pump body. The pump is connected to the steering by the pressure and return hoses. The steering gear
used is a rack and pinion type gear.
Operation
Turning of the steering wheel is converted into linear travel through the meshing of the helical pinion teeth with the
rack teeth within the steering gear. The lateral travel pushes and pulls the tie rods to change the direction of the
vehicle’s front wheels.
Power assist steering is provided by a belt driven rotary type pump. It directs fluid through power steering fluid hoses
to the power steering gear where it is used to assist the driver’s turning effort.
1 - Power Steering Fluid Reservoir
2 - Power Steering Fluid Pressure Hose Bracket
3 - Power Steering Fluid Pressure Hose4 - Power Steering Gear Assembly
5 - Power Steering Fluid Return Hose
6 - Power Steering Pump
LTSM110003
11 –2Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Manual steering control of the vehicle can be maintained if power steering assist is lost. However, under this condi-
tion, steering effort is significantly increased.
WARNING!
Power steering fluid, engine parts and exhaust system may be extremely hot if engine has been running. Do not
start engine with any loose or disconnected hoses. Do not allow hoses to touch hot exhaust manifold or cata-
lyst. Fluid level should be checked with the engine off to prevent personal injury from moving parts.
Specifications
Fluid Specifications
DESCRIPTIONCAPACITY (L)
Power Steering Fluid (ATF III) 1.1
Special Tools
Steering Wheel Puller
Ball Joint Separator
CH-10002
GENERAL INFORMATION
11
11 –3Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Power Steering Troubleshooting Chart
Review this troubleshooting chart any time a power steering system problem is present. This chart will help deter-
mine if the power steering pump or power steering gear is functioning properly.
CONDITIONPOSSIBLE CAUSES CORRECTION
Steering Wheel Is Loose · Steering wheel retaining bolt loose.
· Loose steering column to
instrument panel fasteners.· Check steering wheel retaining bolt
torque and tighten to specifications if
necessary.
· Check steering column to
instrument panel fastener torque and
tighten to specifications if necessary.
Steering Catches, Surges Or Sticks
In Certain Positions Or Is Difficult To
Turn · Low power steering fluid level.
· Tire(s) not properly inflated.
· Loose or slipping power steering/
accessory drive belt.
· Lack of lubrication in steering gear
outer tie rod end(s).· Check fluid level and fill to proper
level if necessary. Check for leaks.
Make sure all air is bled from
system.
· Check and inflate tires to the
specified pressure.
· Verify belt tension. Replace belt
auto-tensioner and belt if necessary.
· Check the outer tie rod ends.
Steering Wheel Does Not Return To
Center Position · Tire(s) not properly inflated.
· Improper front wheel alignment.· Check and inflate tires to the
specified pressure.
· Check and adjust wheel alignment
if necessary.
Excessive Steering Wheel Kickback
From Road Inputs · Air in power steering fluid.
· Power steering gear loose on
cradle/sub-frame.
· Steering column, coupling or
intermediate shaft worn or loose.
· Power steering pump flow is too
low.· Inspect for excessive air bubbles in
fluid (fluid will appear foamy and
lighter in color). Inspect hoses for
leaks and replace if necessary.
Bleed air from fluid.
· Inspect gear mounting bolts.
Replace if necessary and tighten to
specifications.
· Rotate steering wheel back-and-
forth while inspecting intermediate
shaft going into steering gear. Look
for excessive free-play. Retighten if
loose bolt is found. Replace steering
column, coupling or intermediate
shaft if necessary.
· Perform power steering flow and
pressure test. Look for low or erratic
flow or pressure. Replace power
steering pump if necessary.
11 –4Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Power Steering Fluid Troubleshooting Chart
NOTE :
Extremely cold temperatures may cause power steering fluid aeration. The air should work its way out of the system
as the fluid warms.
CONDITIONPOSSIBLE CAUSES CORRECTION
Low Fluid Level With Visible Leak · Loose power steering hose fittings
or connections.
· Damaged or missing O-ring at
power steering hose tube nuts.
· Power steering line or hose failure.
· Power steering component leaking
(reservoir, pump, gear).· Check torque on all tube nuts (at
gear and pump). Inspect clamps at
all rubber hose connections for
correct position, damage and
tension. Tighten tube nuts to
specifications as required.
Reposition or replace clamps at
hose connections. Clean joints and
reinspect for leaks.
· Remove tube nut and inspect
O-ring. If damaged or missing,
replace O-ring. Clean joints and
reinspect for leaks.
· Clean fluid from around suspect
areas. Run vehicle and inspect for
leaks. Look inside reservoir to see if
air is being ingested. Replace hoses
if necessary.
· Clean fluid from around suspect
areas. Run vehicle and inspect for
leaks. Look inside reservoir to see if
air is being ingested. Replace power
steering component if necessary.
Aerated Fluid · Low power steering fluid level.
· Air leak at power steering supply
hose, reservoir or pump.· Check fluid level and fill to proper
level if necessary. Check for leaks.
Make sure all air is bled from
system.
· Inspect components. Place a hand
vacuum pump with reservoir and
verify that system can sustain
vacuum. System should not lose
more than 1 psi in 2 minutes (make
sure vacuum pump is sealed well to
the reservoir). Replace steering
component if necessary.
DIAGNOSIS & TESTING
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11 –5Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine ON-VEHICLE SERVICE
Power Steering Filling and Flushing
Filling
1. Fill the power steering fluid reservoir to the proper level and let the fluid settle for at least two minutes.
2. Start the engine and let run for a few seconds, then turn the engine off.
3. Add fluid if necessary.
4. Repeat the above procedure until the fluid level remains constant after running the engine.
5. When the steering fluid temperature is relatively high, the steering fluid level will approach to the “MAX” level.
6. When the steering fluid cools down, the steering fluid level may approach to the “MIN” level.
NOTE :
If the steering fluid is extremely foamy or milky looking, allow the vehicle to stand a few minutes and repeat the
procedure.
Flushing
1. Raise and support the vehicle.
2. Remove the steering fluid reservoir release cap.
3. Siphon out the contaminated power steering fluid from the power steering liquid reservoir.
4. Remove the return hose clamp (1) from the power steering return hose.
5. Install a plug to the return hose fitting on the fluid reservoir.
6. Insert the power steering fluid return hose into a container for the discharged power steering fluid.
7. Fill the power steering fluid reservoir.
8. Start the engine and idle.
9. Let the engine idle until the return hose discharges clean power steering fluid.
10. Stop the engine and remove the plug from the power steering reservoir.
11. Reinstall the power steering return hose to the power steering reservoir.
12. Fill the power steering system (See Filling Procedure in Power Steering Filling and Flushing in Section 11 Steer- ing).
NOTE :
Approximately 1.0L of power steering fluid should be needed to fully flush the power steering reservoir. DO NOT mix
other fluids in the power steering fluid.
LTSM110042
11 –6Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Inspection
1. If the power steering fluid level is low, inspect the entire power steering system for potential leaks.
CAUTION:
DO NOT operate the vehicle with foamy steering fluid for an extended period. This may cause
pump damage.
2. Perform the following to inspect the power steering fluid reservoir level:•Park the vehicle on a level surface.
• Start the engine.
• Turn the steering wheel several times to heat the power steering fluid to 50°- 60°C.
• With the engine running, turn the steering wheel left and right to the wheel stops and repeat this several
times.
• Check the power steering fluid reservoir to see whether there is foam or milky fluid present. Check the
fluid level difference between engine off (2)
and engine running (1). If the fluid level varia-
tion exceeds 5 mm, air is in the system and
the air should be bled from the power steering
system.
ON-VEHICLE SERVICE
LTSM110030
11
11 –7Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSIS & TESTING
Vehicle Inspection
There is some noise in all power steering systems. One of the most common is a hissing sound. Hiss is a high
frequency noise similar to that of a water tap being closed slowly. The noise is present in all valves that have a high
velocity steering fluid passing through an orifice. There is no relationship between this noise and steering perfor-
mance. The hissing sound is commonly heard during the following operations:
•Evident at a standstill
• At park with the engine running
• When the steering wheel is at the end of its travel
Loose Steering / Vehicle Leads / Drifts Troubleshooting Chart
CONDITION POSSIBLE CAUSES CORRECTION
Excessive Play In Steering Wheel · Worn or loose suspension or
steering components.
· Worn or loose wheel bearings.
· Steering gear mounting.
· Gear out of adjustment.
· Worn or loose steering coupler.· Repair if necessary.
· Repair if necessary.
· Tighten gear mounting bolts to
specification.
· Adjust gear to specification.
· Repair if necessary.
Vehicle Pulls To One Side During
Braking · Tire pressure.
· Air in brake hydraulics system.
· Worn brake components.· Adjust tire pressure.
· Bleed brake system.
· Repair if necessary.
Vehicle Leads Or Drifts From
Straight Ahead Direction On
Uncrowned Road · Tire pressure.
· Radial tire lead.
· Brakes dragging.
· Wheel alignment.
· Weak or broken strut.
· Loose or worn steering/suspension
components.· Adjust tire pressure.
· Cross front tires.
· Repair if necessary.
· Align vehicle.
· Replace strut.
· Repair if necessary.
11
11 –11Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine GENERAL INFORMATION
Description
The steering gear used is the rack-and-pinion type with power assist. It is mounted on the front suspension sub-
frame. The outer ends of the outer tie rods attach to the front knuckles.
NOTE :
The power steering gear should not be serviced or adjusted. If a malfunction or steering fluid leak occurs with the
steering gear, the complete steering gear needs to be replaced.
Operation
The steering wheel turns the pinion. The rack is a long flat bar with geared teeth on one side. The rack teeth mesh
with the teeth on the pinion gear. Rotation of the pinion moves the rack from left to right and right to left. The tie rod
then causes the wheels to turn to the left or right.
Specifications
Torque Specifications
DESCRIPTIONTORQUE (N·m)
Inlet / Outlet Pipe Nut 25 - 30
Intermediate Shaft Bolt 25 - 30
Steering Gear to Sub-Frame Bolts 70 - 80
Sub-Frame Assembly Bolts 180 ± 15
Tie Rod End Nut 32 - 38
Tie Rod Jam Nut 15
Wheel Mounting Nuts 110
Special Tool
Ball Joint Separator
CH-10002
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11 –19Chery Automobile Co., Ltd.