Toyota Sequoia (2005). Manual - part 752

SA140–10

–

SUSPENSION AND AXLE

TROUBLESHOOTING

SA–1

2997

TROUBLESHOOTING

PROBLEM SYMPTOMS TABLE

Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.

Symptom

Suspect Area

See page

Bottoming

1. Vehicle (Overloaded)

2. Spring (Weak)

3. Shock absorber (Worn)

–

SA–63

SA–135

SA–66

SA–135

Sways/pitches

1. Tire (Worn or improperly inflated)

2. Stabilizer bar (Bent or broken)

3. Shock absorber (Worn)

SA–3

SA–90

SA–149

SA–66

SA–135

Front wheel shimmy

1. Tire (Worn or improperly inflated)

2. Wheel (Out of balance)

3. Shock absorber (Worn)

4. Wheel alignment (Incorrect)

5. Ball joints (Worn)

6. Hub bearing (Loose or worn)

7. Steering linkage (Loose or worn)

8. Steering gear (Out of adjustment or broken)

SA–3

SA–3

SA–66

SA–4

SA–83

SA–88

SA–21

–

SR–37

Abnormal tire wear

1. Tire (Improperly inflated)

2. Wheel alignment (Incorrect)

3. Shock absorber (Worn)

4. Suspension parts (Worn)

SA–3

SA–4

SA–66

SA–139

–

Noise in front differential

1. Oil level (Low or wrong grade)

2. Excessive backlash between pinion and ring gear

3. Ring, pinion or side gear (Worn or chipped)

4. Pinion shaft bearing (Worn)

5. Side bearing (Worn)

6. Differential bearing (Loose or worn)

SA–38

SA–50

SA–50

SA–50

SA–50

SA–50

Oil leak from front differential

1. Oil level (Too high or wrong grade)

2. Front differential rear oil seal (Worn or damaged)

3. Side gear oil seal (Worn or damaged)

4. Companion flange (Loose or damaged)

5. Side gear shaft (Damaged)

SA–38

SA–38

SA–50

SA–50

SA–50

Noise in rear axle

1. Oil level (Low or wrong grade)

2. Excessive backlash between pinion and ring gear

3. Ring, pinion or side gear (Worn or chipped)

4. Pinion shaft bearing (Worn)

5. Axle shaft bearing (Worn)

6. Differential bearing (Loose or worn)

SA–105

SA–109

SA–109

SA–109

SA–94

SA–109

Oil leak from rear axle

1. Oil seal (Worn or damaged)

2. Rear axle housing (Cracked)

SA–94

–

Oil leak from rear differential

1. Oil level (Too high or wrong grade)

2. Oil seal (Worn or damaged)

3. Companion flange (Loose or damaged)

SA–105

SA–105

SA–109

SA28F–08

START

Preliminary Check

 

Tire pressure

 

Vehicle height

 

Brake dragging

          ROAD TEST
Does the vehicle lead/pull?

Cross switch front tire & wheel
assemblies (left & right).

Does the vehicle lead/pull in the
same direction as before?

Check front wheel alignment.
Is it within specification?

Adjust front wheel alignment.

Reverse the front left side
tire and rebalance it.

Does the vehicle
lead/pull to the left?

COMPLETE

Are the tires uni–directional type?

Choose the position of front tire & wheel
assemblies where there is the least amount of pull.

Increase left front camber and decrease
right front camber until lead/pull is eliminated.

Increase right front camber and decrease
left front camber until lead/pull is eliminated.

NO

YES

YES

NO

YES

YES

NO

YES

NO

COMPLETE

NO

NO

YES

NO

Is there steering
off center?

Adjust front tie rods.

NO

YES

Is the lead/pull stronger
than before?

YES

NOTICE  :  Do not exceed 1

°

 of cross camber.

                Do not exceed adjustment range.

   Select a flat road where the vehicle can be driven in a straight line for 100 meters at a constant speed
   of 35mph. Please confirm safety and set the steering wheel to its straight position. Drive the vehicle in
   a straight line for 100 meters at a constant speed of 35mph without holding the steering wheel.

(1) The vehicle can keep straight but the steering wheel has some angle.
                                                                          STEERING OFF CENTER (See page 

SR–10

)

(2) The vehicle cannot keep straight.
                                                                          STEERING PULL

YES

NO

YES

           ROAD TEST
Does the vehicle still lead/pull?

NO

           ROAD TEST
Does the vehicle still lead/pull?

           ROAD TEST
Does the vehicle still lead/pull?

           ROAD TEST
Does the vehicle still lead/pull?

NO

Contact your local retail tire distributor.

YES

*

*

SA–2

–

SUSPENSION AND AXLE

TROUBLESHOOTING

2998

REPAIR PROCEDURES

HINT:
This is a flow chart for vehicle pull.

SA17H–11

R03031

F13676

Front

(A)

(B)

R07928

–

SUSPENSION AND AXLE

TIRE AND WHEEL

SA–3

2999

TIRE AND WHEEL

INSPECTION

1.

INSPECT TIRE

(a)

Check the tires for wear and proper inflation pressure.

Cold tire inflation pressure:

Tire size

Front

kPa (kgf/cm

2

, psi)

Rear

kPa (kgf/cm

2

, psi)

P245/70R16

220 (2.2, 32)

240 (2.4, 35)

P265/70R16

220 (2.2, 32)

220 (2.2, 32)

P265/65R17

220 (2.2, 32)

220 (2.2, 32)

(b)

Using a dial indicator, check the tire runout.
Tire runout: 3.0 mm (0.118 in.) or less

2.

ROTATING TIRE

HINT:

Rotate tires as shown in the illustration.

Rotate as shown in (B) if the spare tire is included in the
rotation.

3.

INSPECT WHEEL BALANCE

(a)

Check and adjust the Off–the–car balance.

(b)

If necessary, check and adjust the On–the–car balance.
Imbalance after adjustment: 14.0 g (0.031 lb) or less

4.

CHECK FRONT SUSPENSION FOR LOOSENESS

5.

CHECK STEERING LINKAGE FOR LOOSENESS

6.

CHECK BALL JOINT FOR LOOSENESS

7.

CHECK SHOCK ABSORBER WORKS PROPERLY

Check if oil leaks.

Check the mounting bushings for wear.

Bounce front and rear of the vehicle.

F01718

F05219

F14317

Front:

Rear:

A

B

C

D

SA23H–05

SA–4

–

SUSPENSION AND AXLE

FRONT WHEEL ALIGNMENT

3000

FRONT WHEEL ALIGNMENT

INSPECTION

NOTICE:
Be sure to perform the zero point calibration of the steering
angle, master cylinder pressure, yaw rate and deceleration
sensors (See page 

DI–897

).

1.

MEASURE VEHICLE HEIGHT

Measuring points:
A: Ground clearance of the front drive shaft center
B: Ground clearance of the front adjusting cam bolt center
C: Ground clearance of the rear axle shaft center
D: Ground clearance of the rear lower control arm front bolt cen-
ter
Vehicle height (Except air suspension models):

UCK35L–GKBSKA

Tire size: P245/70R16

Front

Rear

Tire size: P265/70R16 and P265/65R17

Front

Rear

A – B: 69.7 mm (2.74 in.)

C – D: 76.2 mm (3.00 in.)

A – B: 69.5 mm (2.74 in.)

C – D: 75.5 mm (2.97 in.)

UCK35L–GKBLKA

Front

Rear

A – B: 71.6 mm (2.82 in.)

C – D: 77.3 mm (3.04 in.)

UCK45L–GKBSKA

Front

Rear

A – B: 61.6 mm (2.43 in.)

C – D: 63.8 mm (2.51 in.)

UCK45L–GKBLKA

Front

Rear

A – B: 62.8 mm (2.47 in.)

C – D: 65.2 mm (2.57 in.)

Vehicle height (Air suspension models):

UCK35L–GKBSKA

Tire size: P245/70R16

Front

Rear

Tire size: P265/70R16 and P265/65R17

Front

Rear

A – B: 68.5 mm (2.69 in.)

C – D: 74.8 – 104.8 mm (2.94 – 4.13 in.)

A – B: 68.3 mm (2.69 in.)

C – D: 74.1 – 104.1 mm (2.92 – 4.10 in.)

UCK35L–GKBLKA

Front

Rear

A – B: 70.3 mm (2.77 in.)

C – D: 74.6 – 104.6 mm (2.94 – 4.12 in.)

UCK45L–GKBSKA

Front

Rear

A – B: 60.5 mm (2.38 in.)

C – D: 61.0 – 91.0 mm (2.40 – 3.58 in.)

UCK45L–GKBLKA

Front

Rear

A – B: 61.8 mm (2.43 in.)

C – D: 61.3 – 91.3 mm (2.41 – 3.59 in.)

NOTICE:
Before inspecting the wheel alignment, adjust the vehicle
height to the specified value.