Diagnosis Of Propeller Shaft And Universal Joint - Isuzu 1999 RODEO Workshop Manual

Diagnosis of Propeller Shaft and Universal Joint

Condition
Universal Joint Noise.
Ping, Snap, or Click in Drive Line
(Usually Heard on Initial Load after
the Transmission is in Forward or
Reverse Gear) Reverse Gear)
Knocking or Clanking Noise in the
Driveline when in High or Neutral
Gear at 16km/h(10mph)
Squeak
Shudder on Acceleration
Speed)
Vibration
Excessive Leak at the Front Spline
Yoke of Rear Propeller Shaft
Possible cause
Worn universal joint bearings.
Improper lubrication.
Loose flange bolts.
Loose bushing bolts on the rear
springs or upper and lower control
arms.
Loose or out-of-phase end yoke.
Worn or damaged universal joint
Lack of lubricant.
(Low Loose or missing bolts at the flanges.
Incorrectly set front joint angle.
Worn universal joint.
Incorrect shaft runout.
Shaft out of balance.
Transmission rear housing bushing,
transfer case housing bushing worn.
Yoke spline jammed.
Rough surface on splined yoke;
burred nicked or worn.
Defective transmission rear oil seal.
DRIVE SHAFT SYSTEM
Correction
Replace.
Lubricate as directed.
Tighten to specifications.
Tighten the bolts to specified torque.
Remove end yoke, turn 180 degrees
from its original position, lubricate the
splines and reinstall. Tighten the
bolts and pinion nut to specified
torque.
Replace the universal joint.
Lubricate joints and splines. Also
check for worn or brinelled parts.
Replace or tighten bolts to specified
torque.
Install shim under the transmission
support mount to change the front
joint angle.
Replace.
Replace.
Adjust.
Replace.
Replace.
Replace the seal. Minor burrs can be
Smoothed by careful use of crocus
cloth or fine stone honing. Replace
the yoke if badly burred.
Replace the transmission rear oil
seal and replenish the transmission
oil.
4C–31