Subaru IMPREZA 2002 Service Manual page 162

GENERAL DIAGNOSTIC TABLE
DRIVE SHAFT SYSTEM
Symptom
1. Vibration of propeller shaft
NOTE:
Vibration is caused by propeller shaft dur-
9. General Diagnostic Table
Possible cause Remedy
(1) Worn or damaged universal joint.
(2) Unbalanced propeller shaft due to
bend or dent,
Replace.
Replace.
A:INSPECTION
ing operation and is transferred
to
vehicle
body. Generally vibration increase in pro-
portion to vehicle speed.
NOTE:
Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper
wheel alignment, etc.
Retighten.
Replace.
(3) Loose installation of propeller shaft,
(4) Worn or damaged center bearing and
damaaed center mountina rubber.
2. Tapping when starting and noise
while cruising, Cawed by Propeller
shaft.
I
"
(1) Worn or damaged universal joint.
(2)
Worn spline of sleeve yoke.
(3) Loose installation of propeller shaft.
Replace.
Replace.
Retighten.
-
3. Front wheel shimmy
4. Wander or pulling
(4)
Loose installation of joint.
(5) Worn or damaged center bearing and
damaged center mounting rubber.
(1)
Worn or damaged hub bearing
(1) Worn or damaged hub bearing
Replace.
Replace.
Repair or replace.
Repair or replace.
DS-46