Geely Diagnosis Flow. Manual part — 60

237

No. 173 Steering wander during normal driving

Malfunction

Causes

Solution

Tire pressure of two front wheels not equal, diameter not
equal or ca loading uneven;

Inflate the tire, adjust loading;

One of tire or hub of two front wheels deformed

Replace deformed tire or hub;

One ball head of steering tie-rod loosening or jammed

Replace loosening or jammed ball head;

Toe-in too large or negative toe-in

Correct toe-in;

one ball head of lower swing arm loosening or jammed

Replace loosening or jammed ball head
of lower swing arm;

Front spiral spring at two sides with unequal height or
elasticity;

Replace spring;

One lower swing arm bent or lining loosening

Replace lower swing arm assembly;

Lower joist of front suspension deformed

Replace lower joist of front suspension;

Wheelbase of two sides of frames unqual

Adjust wheelbase at two sides of frame;

Hub bearing or oil seal of two front wheels with unequal
degree of tightness

Adjust degree of tightness of hub bearing
or oil seal of two front wheels;

Wheels at two sides of front, rear axles with braking or
dragging at one side;

Correct breaking of wheels at two sides
of front, rear axle;

camber angle of two front wheels, kingpin caster angle or
kingpin toe-in angle unequal;

Correct camber angle of two front
wheels, kingpin caster angle or kingpin
toe-in angle

Front beam, rear axle tube or frame with bending with
horizontal plane;

Correct front beam, rear axle tube or
frame;

Camber of paving too large or with cross wind.

Choose road for driving;

Automatically run to
another side during
driving. Straight driving
only ensured with
hands forcibly holding
steering wheel

Electric power-assisted steering pitch sensor incorrectly
adjusted

Adjust or replace steering column
assembly;

238

Automatic steering wandering diagnosis flow chart

239

No. 174 Front wheel tire abnormally worn

Malfunction Causes

Solution

(1) Tire pressure not conforming to requirements;

Inflate or discharge to the standard

(2) Tire not changed for long time;

Replace the tire

(3) Front wheel incorrectly positioned, especially
toe-in and camber incorrectly matched

Make four-wheel positioning

(4) Hub bearing loosening

Replace the bearing

(5) Steering inner, outer tie-rod or steering engine
loosening;

Replace ball head or fasten screws

(6) Radial circle or end face circle of front wheel
with too large runout;

Balance the tire or replace tire

(7) Rotating quality of front wheel imbalanced;

Balance the tire

(8) Front wheel yawing;

Fasten nuts of tie-rod ball head, replace the tire

(9) Longitudinal center line of front axle and frame
not vertical, or wheelbase at two sides of frame
unequal;

Correct or adjust frame and wheelbase

(10) Front axle or frame bent, deformed;

Correct or adjust frame and wheelbase

(11) Front axle with insufficient rigidity;

Replace front axle

(12) Steering tie-rod or ball joint with insufficient
rigidity;

Replace steering tie-rod

(13) Front wheel unbracing, braking slowly back,
or braking dragging;

Adjust braking

(14) Tire bolt loosening;

Fasten screws

(15) Overloading, uneven loading, startup too fast,
turning or braking at high-speed with too strong
rush;

Reduce loading or reduce braking

(16) Often drive on the road with larger camber; Reduce driving on unfavorable road

(17) Turning angle unable to ensure pure rolling of
each wheel, with too much or insufficient steering;

Eliminate incorrect driving behaviors

Tire increasingly
worn, with unusual
tread shape

(18) Poor tire quality;

Choose high-quality tire

240

Diagnosis flowchart of unusual abrasion of front wheel