Ford 2002 Bantam - Page 57

100-04-53 Noise, Vibration and Harshness 100-04-53
DIAGNOSIS AND TESTING (CONTINUED)
E859 EN 02/2001 2002 Bantam
CONDITIONS
DETAILS/RESULTS/ACTIONS
I3: CHECK FOR PULLEY RUN OUT/BELT WHIP
1 Check for pulley run out/belt whip.
- Ignition switch ON, engine running.
- Select NEUTRAL.
- Run the engine at the vibration speed.
- Check the belt for belt whip.
- Check the drive pulleys at idle for radial or
axial run out greater than 3.175 mm.
• Does the vehicle experience belt whip or pulley
run out?
 Yes
For belt whip, CHECK/INSTALL new
accessories and drive system as necessary.
REFER to Section 303-05. For pulley run
out, CHECK/INSTALL new pulley or
accessory as necessary. TEST the system
for normal operation.
 No
GO TO I4
I4: INSPECT THE BELT RIDE
1 Inspect the belt ride.
- Inspect the belt ride in each pulley at idle.
• Does the belt ride up and down the pulley?
 Yes
INSTALL a new pulley.
REFER to Section
303-05.
TEST the system for normal
operat
ion.
 No
GO TO I5
I5: CHECK THE BELT
1 Check the belt.
- Ignition switch OFF. Remove the drive belt.
- Ignition switch in RUN, engine running.
• Has the vibration been reduced or eliminated?
 Yes
INSTALL a new belt. TEST the system for
normal operation. If the condition still occurs
after installation GO to Pinpoint Test C.
 No
REFER to Section 303-00.