Pontiac Fiero 1988 Service Manual page 154

STEERING, SUSPENSION, TIRES AND WHEELS DIAGNOSIS 3-13
VIBRATION COMPLAINT
TIRE-WHEEL-HUB-AXLE
R E L A T E D
ROAD T E S T TO
V E R I F Y COMPLAINT
LOW SPEED
BELOW 40 MPH
OK
OK
ON-CAR
RUNOUT C H E C K
NOT OK
OFF-CAR
RUNOUT C H E C K
NOT OK
MATCH MOUNT
T I R E ON WHEEL
NOT OK
j ~
J
—
R E P L A C E
T I R E
OK
I
VISUAL INSPECTION
X
OK
INDEX ASSEMBLY
ON W H E E L STUDS
NOT OK
HIGH SPEED
ABOVE 40 MPH
OFF-CAR OK /
DYNAMIC BALANCE
\
NOT OK
I
ON-CAR
FINISH BALANCE
NOT OK
I
OK-
MEASURE AND
R E P L A C E W H E E L
MEASURE A X L E OR
HUB FLANGE
RUNOUT
OK
_ L
I
NOT OK
_ J _
R E P L A C E HUB OR
A X L E SHAFT
T
OK
O F F CAR
DYNAMIC BALANCE
I
NOT OK
OK
STOP
OK
ON-CAR OK /
FINISH BALANCE
^
NOT OK
_ i _
CHECK FOR ENGINE
DRIVE LINE IMBALANCE
G35256-3-AN
Fig. 17 Vibration Complaint Chart (1 of 2)