Troubleshooting |
Symptom | Possible cause | Remedy |
Hard steering | Improper front wheel alignment Excessive turning resistance of lower arm ball joint Low tire pressure No power assist | Correct Replace Adjust Repair and replace |
Poor return of steering wheel to center | Improper front wheel alignment | Correct |
Poor or rough ride | Improper front wheel alignment Malfunctioning shock absorber Broken or worn stabilizer Broken or worn coil spring Worn lower arm bushing | Correct Repair or replace Replace Replace Replace the lower arm assembly |
Abnormal tire wear | Improper front wheel alignment Improper tire pressure Malfunctioning shock absorber | Correct Adjust Replace |
Wandering | Improper front wheel alignment Poor turning resistance of lower arm ball joint Loose or worn lower arm bushing | Correct Repair Retighten or replace |
Vehicle pulls to one side | Improper front wheel alignment Excessive turning resistance of lower arm ball joint Broken or worn coil spring Bent lower arm | Correct Replace Replace Repair |
Steering wheel shimmy | Improper front wheel alignment Poor turning resistance of lower arm ball joint Broken or worn stabilizer Worn lower arm bushing Malfunctioning shock absorber Broken or worn coil spring | Correct Replace Replace Replace Replace Replace |
Bottoming | Broken or worn coil spring Malfunctioning shock absorber | Replace Replace |
Wheel and tire diagnosis | |||||||||||||||||||||||
Rapid wear at the center | Rapid wear at both shoulders | Wear at one shoulder | |||||||||||||||||||||
|
|
| |||||||||||||||||||||
Partial wear | Feathered edge | Wear pattern | |||||||||||||||||||||
|
|
|
Underdrive Brake Control Solenoid Valve(UD/B_VFS) Description and Operation
Description
Underdrive brake control solenoid valve(UD/B) is attached to
the valve body. This variable force solenoid valve directly controls the
hydraulic pressure inside the underdrive brake. ...
Vacuum crankcase ventilation hoses
Inspect the surface of hoses for evidence of heat and/or mechanical damage. Hard
and brittle rubber, cracking, tears, cuts, abrasions, and excessive swelling indicate
deterioration. Particular atten ...
1. Crankcase emission control system
The positive crankcase ventilation system is employed to prevent air pollution
caused by blow-by gases being emitted from the crankcase.
This system supplies fresh filtered air to the crankcase thro ...