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SUSPENSION
4
6.3 DIAGNOSIS
FRONT SUSPENSION & REAR SUSPENSION
Always road test the vehicle first before coming to any conclusion, Do some preliminary visual inspection
and correct any defects if found.
1. Inspect the tyre pressures and tyre wear.
2. Lift the vehicle using two post lift and inspect front and rear suspension for loose or damaged parts.
3. Rotate the wheels and check for out-of round tyres, bent rims, loose or rough wheel bearings.
4. Detailed inspection of parts / sub assembly of rear suspension is given in Inspection Section.
CONDITION
PROBABLE DEFECT
CORRECTIVE ACTION
Directional Instability
and Vehicle Pulling
1. Mismatched / uneven tyres wear.
2. Cracked / broken or sagging
springs.
3. Improper tyre inflation
4. Misaligned
front
wheel
geometry/rear wheel geometry
5. Loose, bent or broken suspension
parts
1. Replace tyre
2. Replace spring
3. Adjust tyre pressure
4. Check and adjust front wheel
alignment / rear wheel
geometry
5. Tighter or replace suspension
Parts
Unusual Excessive Tyre
Wear
1. Sagged springs or set springs
2. Tyres imbalanced
3. Faulty strut
4. Misaligned front and rear wheel
geometry
5. Vehicle over loaded
6. Loose or worn out wheel bearing
7. Tyre inflation not proper
1. Replace spring
2. Balance or replace tyres
3. Replace Strut
4. Adjust the wheel alignment at
front / rear ends
5. Check Loading
6. Replace wheel bearing
7. Adjust tyre pressure
Wheel tramp
1. Bump on tyre
2. Improper strut action
1. Replace tyre
2. Replace strut