Ford 2002 Bantam - Page 49

100-04-45 Noise, Vibration and Harshness 100-04-45
DIAGNOSIS AND TESTING (CONTINUED)
E859 EN 02/2001 2002 Bantam
CONDITIONS
DETAILS/RESULTS/ACTIONS
D2: INSPECT THE ACCESSORY DRIVE BELT AND PULLEYS
1 Inspect the belt and pulleys.
- With the engine stopped, inspect the
accessory drive belt and pulleys for wear or
damage, and check the belt tension.
REFER
to Section 303-05.
• Are the belt, automatic tensioner or pulleys
worn or damaged?
 Yes
INSTALL new components as necessary.
REFER to Section 303-05. TEST the
system for normal operation. If the vibration
still exists. GO TO D3
 No
GO TO D3
D3: CHECK THE MOUNTING HARDWARE
1 Check the mounting hardware.
- Check the mounting brackets and adjusting
components for correct alignment and
tightness.
• Are the mounting and adjusting components
secure?
 Yes
GO TO D4
 No
ALIGN and TIGHTEN the mounting
hardware
to specifications. REFER to
Section 303-05.
CORRECT the belt tension.
START the engine and run-up to the
concern rpm. If the vibration still exists.
GO TO D4
D4: CHECK WITH THE ENGINE IDLING
1 Check with the engine idling.
- With the engine idling, visually check the
accessory drive belt and pulleys for
misalignment, run out or irregular motion.
Maximum run out is 3.175 mm.
- Increase the engine rpm.
• Are the belt and pulleys OK?
 Yes
GO TO D5
 No
Diagnose the accessory drive belt concern.
REFER to Section 303-05.