
Loosen wheel nutsCheck the wheel nuts.
Tighten to specification.
Damaged or uneven tire wear Spin the tire and Check for abnormal
tire wear or damage. Install a new tire
as necessary.
Tire shimmy or shake - occurs at
lower speeds Wheel/tire out of balance
Uneven tire wear
Check for abnormal tire wear. Install a
new tire as necessary.
Excessive radial runout of wheel or
tire Perform a radial runout test of the
wheel and tire.
Install a new tire as necessary.
Worn or damaged wheel studs or
elongate stud holes Inspect the wheel studs and wheels.
Install new components as necessary.
Excessive lateral runout of the wheel
or tire Perform a lateral runout test of the
wheel and tire.
Check the wheel, tire and hub. Repair
or Install new components as
necessary.
Foreign materal between the brake
disc and hub. Clean the mounting surfaces of the
brake disc and hub.
See DS group - front/rear axle.
High speed shake or shimmy - occurs
at high speeds Excessive wheel hub runout
Damaged or worn tires
Damaged or worn wheel bearings
Worn or damaged suspension or
steering linkage
Brake disc or drum imbalanceGo to detailed test D.
Drift left or right Tires
Steering linkage
Alignment
Base brake systemGo to detailed test E.
Steering wheel Alignment
Steering linkage
Front lower arm ball jointGo to detailed test F.
Tracks incorrectly Rear suspension
CasterGo to detailed test G.
Rough ride Front strut and spring assembly
Rear shock absorber and spring
assemblyGo to detailed test H.
Excessive noise Front or rear stabilizer bar
components
Springs
Suspension components
Shock absorbersGo to detailed test I.
Incorrect tire wear Tire or unbalanced wheels
Tire inflation
Strut
AlignmentGo to detailed test J.
Vibration Wheel/tire
Front wheel driveshaft(s)
Steering system
Strut and spring assemblyGo to detailed test K.

c.Inspect the tire wear pattern.
● Do the tires have an abnormal wear pattern ?
→ YES
Correct the condition that caused the abnormal wear. Install new tire(s).
Test the system for normal operation.
→ NO
Go to
TIRE ROTATION DIAGNOSIS a.Spin the tires slowly and watch for signs of lateral runout.
b. Spin the tires slowly and watch for signs of radial runout.
● Are there signs of visual runout ?
→ YES
Go to
→ NO
Check the wheel and tire balance.
Correct as necessary. Test the system for normal operation.
RADIAL RUNOUT CHECK ON THE TIRE Measure the radial runout of the wheel and tire assembly. A typical
specification for total radial runout is 1.15mm (0.059 inch).
● Is the radial runout within specifications ?
→ YES
Go to C8.
→ NO
Go to C6.
RADIAL RUNOUT CHECK ON THE WHEEL Measure the radial runout of the wheel. A typical specification for total radial
runout is 1.14mm (0.045 inch.).
● Is the radial runout within specifications ?
→ YES
Install a new tire. Test the system for normal operation.
→ NO
Go to C7.
CHECK THE HUB/BRAKE DISC OR DRUM PILOT RUNOUT OR BOLT CIRCLE RUNOUT Measure the pilot or bolt circle runout. A typical specification for radial
runout is :
● pilot runout - less than 0.15mm (0.006 inch.)
● bolt circle runout - less than 0.38 mm (0.015 inch.)
● Is the radial runout within specification ?
→ YES
Install a new wheel. Test the system for normal operation.
→ NO
Repair or Install new components as necessary.
LATERAL RUNOUT CHECK ON THE TIRE Measure the lateral runout of the wheel and tire assembly. A typical
specification for total lateral runout is 2.5mm (0.098 inch).

a.Substitute a known good set of wheels and tires.
b. Perform a road test.
c. If the vehicle still exhibits a shake or vibration, note the vehicle speed
and/or engine rpm which it occurs.
● Is the vibration felt ?
→ YES
Engine/transmission imbalance.
See the specification of TR group, EM group, FL group and EC group.
→ NO
Install the original tire/wheel assemblies one by one, Road testing at
each step until the damaged tire(s)/wheel(s) as necessary. Test the
system for normal operation.
Wheel /tire noise, vibration and harshness concerns are directly related to vehicle speed and are not generally affected
by acceleration, coasting or decelerating. Also, out - of- balance wheel and tires can vibrate at more than one speed. A
vibration that is affected by the engine rpm, or is eliminated by placing the transmission in Neutral is not related to the
tire and wheel. As a general rule, tire and wheel vibrations felt in the steering wheel are related to the front tire and
wheel assemblies. Vibrations felt in the seat or floor are related to the rear tire and wheel assemblies. This can initially
isolate a concern to the front or rear.
Careful attention must be paid to the tire and wheels. There are several symptoms that can be caused by damaged or
worn tire and wheels. Perform a careful visual inspection of the tires and wheel assemblies. Spin the tires slowly and
watch for signs of lateral or radial runout. Refer to the tire wear chart to determine the tire wear conditions and actions WHEEL AND TIRE DIAGNOSIS
Rapid wear at the center Rapid wear at both shoulders Wear at one shoulder
a.Center - tread down to fabric due to
excessive over inflated tires
b. Lack of rotation
c. Excessive toe on drive wheels
d. Heavy acceleration on drive a.
Under- inflated tires
b. Worn suspension components
c. Excessive cornering speeds
d. Lack of rotation a.
Toe adjustment out of specification
b. Camber out of specification
c. Damaged strut
d. Damaged lower arm
Partial wear Feathered edge Wear pattern
a.Caused by irregular burrs on
brake drums a.
Toe adjustment out of
specification
b. Damaged or worn tie rods
c. Damaged knuckle a.
Excessive toe on non- drive
wheels
b. Lack of rotation

2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
Item Specification
Master cylinder
· Type
· I.D. mm(in)
· Piston stroke mm(in)
· Fluid level warning sensor Tandem type
26.99/(1.063)
30(1.18)
Provided
Brake booster
· Type
· Boosting ratio 8 + 9 in Tandem
9.0 : 1
Front brake(Disc)
· Type
· Disc O.D.
· Disc thickness
· Pad thickness
· Cylinder type
· Cylinder I.D. Floating type with ventilated disc
298 mm (11.73 in)
28 mm (1.10 in)
10.5 mm (0.41 in)
Double piston
Ø48 mm (Ø1.89 in)
Rear brake(Disc)
· Type
· Disc O.D.
· Disc thickness
· Pad thickness
· Cylinder type
· Cylinder I.D Floating type with solid disc
302 mm (11.89 in)
12 mm (0.47 in)
10 mm (0.39 in)
Single piston
Ø42.9 mm (Ø1.69 in)
Parking brake
· Type
· Actuation
· Drum DIH(Drum in hat)
Foot brake
Ø190 mm (Ø7.48 in)
O.D=Outer Diameter
I.D=Inner Diameter
ABS : Anti- lock Brake System
ESP : Electronic Stability Program
SERVICE STANDARD
Items Standard value
Brake pedal height 192.4 mm(7.57 in)
Brake pedal full stroke 122 mm (4.8 in)
Adjust Brake pedal full stroke 60 mm (2.36 in)
Brake pedal free play 3 ~ 8 mm(0.11 ~ 0.31 in)
Stop lamp switch outer case to pedal stopper clearance 1.0 ~ 1.5 mm (0.04 ~ 0.06 in)
Booster push rod to master cylinder piston clearance 0.6 ~ 1.7(0.02 ~ 0.07 in)(at 500 mmHg)
Parking brake pedal stroke when pedal assembly is depressed with
294N (30kgf, 66lb force) 145 mm (5.71 in) above
Front disc brake pad thickness 10.5 mm (0.41 in)
Front disc thickness 28 mm (1.10 in)
Rear disc brake pad thickness 10 mm (0.39 in)
Rear disc brake disc thickness 12 mm (0.47 in)
Rear parking brake liner thickness 4 mm (0.16 in)