Mazda MX-5 1990 Workshop Manual page 486

TROUBLESHOOTING GUIDE
R
TROUBLESHOOTING GUIDE
Problem Possible cause Action
Page
General instability Weak coil spring Replace
R-13
Malfunction of shock absorber
Replace
R-12,22
Worn or dam9ged stabilizer and/or suspension arm Replace
R-16,18,19
bushings 23,24,25
Section M
Worn or damaged upper or lower arm ball joint
Replace R-15,17
Improperly adjusted wheel alignment Adjust R- 6
Body "rolls" Weak stabilizer Replace R-19,25
Worn or damaged stabilizer and/or suspension arm Replace R-16, 18, 19
bushings
23,24,25
Section M
"Heavy" steering Insufficiently lubricated or stuck upper arm lower arm Replace R-15,17
wheel operation ball joint
Improperly adjusted wheel alignment
Adjust
R- 6
Steering wheel pulls
Weak coil spring
Replace R-13
to one side Worn or damaged stabilizer and/or suspension arm Replace R-16,18,19
bushings
23,24,25
Deformed upper or lower arm or knuckle
Replace R-15,17
Section M
Loose upper or lower arm bushing Replace R-16,18
Excessive steering Worn or damaged upper or lower arm bushing Replace R-16,18
wheel play Worn or damaged upper or lower arm ball joint Replace R-15,17
Body leans
Weak coil spring Replace R-13
Weak stabilizer and/or suspension arm bushings
Replace R-16,18,19
23,24,25
Section M
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Abnormal noise from
Loose mounting component Tighten -
suspension system Poorly lubricated or worn upper or lower arm ball joint Replace R-15,17
Malfunction of shock absorber Replace R-12,22
Worn or damaged stabilizer and/or suspension arm Replace R-16,18,19
bushings 23,24,25
Section M
Shake Excessive tire or wheel runout
Replace
-
(Steering wheel Loose lug nuts Tighten Section
Q
vibrates up/down)
Unbalanced wheel(s) Adjust or replace Section
Q
Cracked or worn engine mounting rubber Replace Section B
Cracked or worn transmission mounting rubber Replace
Section J
Shimmy Cracked or worn steering gear mounting rubber
Replace Section N
(Steering wheel Loose steering gear mounting bolts Tighten Section N
vibrates left/right)
Stuck or damaged steering ball joint Replace Section N
Excessive tire or wheel runout Replace -
Loose lug nuts
Tighten Section
Q
Unbalanced wheel(s)
Adjust or replace Section
Q
Insufficient tire pressure
Adjust Section
Q
Unevenly worn tires
Replace Section Q
Malfunction of shock absorber
Replace R-12,22
Loose shock absorber'mounting bolts Tighten R-12,22
Stuck or damaged upper or lower arm ball joi nt
Replace R-15,17
Cracked or worn suspension bushings
Replace
R-16,18,19
Damaged or worn front wheel bearing Replace Section M
Improperly adjusted front wheel alignment Adjust R- 6
05UORX-006
R-5