Front Suspension: Diagnosis Nissan Note E12

NVH Troubleshooting Chart

Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.

Scheme 1

PRELIMINARY INSPECTION

Note. If the wheel alignment is out of specification, inspect and replace any damaged or worn rear suspension parts before making any adjustments.

1. Check and adjust the wheel alignment with the vehicle under unladen conditions. "Unladen conditions" means that the fuel, engine coolant, and lubricants are full; the spare tire, jack, hand tools and mats are in designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to " «WHEEL»(ref-675581-S05560007122014120500000) ".
4. Check the wheel bearing axial end play. Refer to " «WHEEL BEARING»(ref-675590-S14713164842014120500000) ".
5. Check the shock absorbers for leaks or damage.
6. Check each mount point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the suspension member for any damage.
8. Check the vehicle height. Refer to " «WHEELARCH HEIGHT (UNLADEN*)»(ref-675608-S26372369392014120500000) ".

CAMBER, CASTER AND KINGPIN INCLINATION ANGLES INSPECTION

1. Camber, caster, kingpin inclination angles cannot be adjusted.
2. Before inspection, set the front wheels onto a turning radius gauge. Set the rear wheels onto a pad that has the same height so the vehicle will remain horizontal.

TOTAL TOE-IN INSPECTION

Measure the total toe-in using the following procedure.

Scheme 2

Scheme 3

1. Bounce the front of vehicle up and down to stabilize the vehicle height (posture).
2. Push on the rear wheel to move the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on base line of the tread (rear side) of each tire at the same height of hub center. These are measuring points.
4. Measure the distance (A) from the rear side.
5. Push on the rear wheel to move the vehicle slowly ahead and to rotate the wheels 180 degrees (1/2 turn). CAUTION: If the wheels have rotated more than 180 degrees (1/2 turn), try the above procedure again from the beginning. Do not push vehicle backward.
6. Measure the distance (B) from the front side.
7. Use the formula below to calculate total toe-in. Total toe-in: A - B Total toe-in specification: Refer to " «WHEEL ALIGNMENT (UNLADEN*1)»(ref-675608-S41437165262014120500000) ". If the total toe-in is outside the specification, adjust the total toe-in. Refer to " «ADJUSTMENT»(ref-675608-S28541819612014120500000) ".

INSPECTION AFTER REMOVAL

Check the following items and replace the components as necessary.

INSPECTION AFTER INSTALLATION

1. Check wheel alignment. Refer to " «WHEEL ALIGNMENT (UNLADEN*1)»(ref-675608-S41437165262014120500000) ".
2. Perform the steering angle sensor neutral position adjustment. Refer to " «WORK PROCEDURE»(ref-675599-S14805241842014120500000) ".

Scheme 4

Scheme 5

1. Remove wheel and tire using power tool. Refer to " «REMOVAL AND INSTALLATION»(ref-675581-S28220831532014120500000) ".
2. Remove the nuts, then separate the stabilizer connecting rod from the stabilizer bar.
3. Remove the front suspension member. Refer to " «REMOVAL AND INSTALLATION»(ref-675608-S34734898222014120500000) ".
4. Remove the stabilizer clamp bolts, stabilizer clamps and stabilizer bushings from front suspension member.
5. Remove stabilizer bar.

Check the stabilizer bar, the stabilizer connecting rod, the stabilizer bushing, and the stabilizer clamp for deformation, cracks, or damage. Replace components if necessary.

1. Check the wheel alignment. Refer to " «INSPECTION»(ref-675608-S19326945252014120500000) ".
2. Perform the steering angle sensor neutral position adjustment. Refer to " «WORK PROCEDURE»(ref-675599-S14805241842014120500000) ".

Scheme 6

Check the front suspension member for cracks, wear or damage. Replace components if necessary.

1. Check the wheel sensor harness to be sure the connectors are fully seated.
2. Check the neutral position of the steering angle sensor. Refer to " «WORK PROCEDURE»(ref-675599-S14805241842014120500000) ".
3. Check the wheel alignment. Refer to " «INSPECTION»(ref-675608-S19326945252014120500000) ".

Scheme 7

INSPECTION AFTER DISASSEMBLY

Check the following items and replace the parts if necessary.

1. Check the wheel sensor harness to be sure the connectors are fully seated.
2. Check the neutral position of the steering angle sensor. Refer to " «WORK PROCEDURE»(ref-675599-S14805241842014120500000) ".
3. Check the wheel alignment. Refer to " «INSPECTION»(ref-675608-S19326945252014120500000) ".

Scheme 8

1. Set the strut horizontally with the piston rod fully extended.
2. Drill a 2 - 3 mm (0.08 - 0.12 in) hole at the position (•) from top as shown to release gas gradually. CAUTION: Wear eye protection (safety glasses). Wear gloves. Be careful with metal chips or oil blown out by the compressed gas. NOTE: Drill vertically in this direction (<==). Drill directly to the outer tube avoiding brackets. The gas is clear, colorless, odorless, and harmless. (A): 20 - 30 mm (0.79 - 1.18 in)
3. Position the drilled hole downward and drain oil by moving the piston rod several times. CAUTION: Dispose of drained oil according to the law and local regulations.