Ping, Snap, Or Click Noise - GMC chervolet camaro 1999 Service Manual

4-6 Propeller Shaft Drivelinef Axle
Roughness or Vibration (cont'd)
Step
Action
Value(s) Yes No
13
Inspect the propeller shaft for lack of balance.
-
Is the propeller shaft unbalanced? Go to Step 14 Go to Step 15
Inspect for the missing balance weight on the propeller
14
shaft. Rotate the shaft 180 degrees on the fixed yoke. -
Is there still roughness or vibration? Go to Step 15 System
DK
15
Inspect the universal joint for incorrect angle placement.
-
Is the universal joint at an incorrect angle? Go to Step 16 Go to Step 17
16
Correct the universal joint angle.
-
Is there still roughness or vibration? Go to Step 17 System
DK
Inspect the yokes and the flanges for the following
conditions:
17
• Damage
-
• Distortion
Are the yokes and/or the flanges damaged or distorted? Go to Step 18 Go to Step 19
18
Replace the yokes and/or the flanges.
-
Is there still roughness or vibration? Go to Step 19 System
OK
19
Inspect the shaft for yokes that are out of phase.
-
Are the yokes out of phase on the shaft? Go to Step20 Go to Step21
Replace the propeller shaft if the propeller shaft is a
one-piece shaft.
20 Reindex the propeller shaft if the propeller shaft is a
-
two-piece shaft.
Is there still roughness or vibration? Go to Step21 System
OK
Inspect for driveline vibration during vehicle operation at a
21
speed of 80 km/h (50 mph).
-
-
Is there driveline vibration at the specified speed? Go toStep22
(
Inspect the propeller shaft runout.
22 Inspect for missing balance weights on the propeller shaft.
- -
Is there driveline vibration at the specified speed?
System OK
Ping, Snap, or Click Noise
Step
Action
Value(s) Yes
No
DEFINITION: A ping, a snap or a clicking noise in the driveline that is usually heard during initial load after the transmission
is in gear.
Inspect the rear axle lower control arm for loose
1
bolts/screws.
-
Are there loose bolts/screws in the lower control arm? Go to Step2
Go to Step3
Tighten the bolts/screws to the specified torque. Refer to
2
Rear Suspension in Suspension. -
Is there still a ping, a snap or a clicking noise? Go to Step3 System
OK
Inspect the universal joints for the following conditions:
• Wear
3
-
• Damage
Are any of the universal joints worn or damaged?
Go to Step 4 Go to Steps
4
Replace the worn or damaged universal joint(s).
-
Is there still a ping, a snap or a clicking noise? Go to Step 5
System OK
Inspect the fixed yoke in order to determine if the fixed
5
yoke is loose. - -
Is the fixed yoke loose?
Go to Step 6
Tighten the drive pinion gear nut to the specified torque.
6
Refer to Fastener Tightening Specifications. -
-
(
Is there still a ping, a snap or a clicking noise?
System
OK