Dodge dakota 2002 Service Manual page 319

7 - 32 ACCESSORY DRIVE
DRIVE BELTS - 5.9L DIESEL (Continued)
Refer to ACCESSORY DRIVE BELT DIAGNOSIS
CHART for further belt diagnosis.
Fig. 14 Belt Wear Patterns
1 - NORMAL CRACKS BELT OK
2 - NOT NORMAL CRACKS REPLACE BELT
CONDITION
RIB CHUNKING (One or more ribs
has separated from belt body)
RIB OR BELT WEAR
BELT SLIPS
ACCESSORY DRIVE BELT DIAGNOSIS CHART
POSSIBLE CAUSES
1. Foreign objects imbedded in
pulley grooves.
2. Installation damage
1. Pulley misaligned
2. Abrasive environment
3. Rusted pulley(s)
4. Sharp or jagged pulley groove
tips
5. Belt rubber deteriorated
1. Belt slipping because of
insufficient tension
2. Belt or pulley exposed to
substance that has reduced friction
(belt dressing, oil, ethylene glycol)
3. Driven component bearing failure
(seizure)
4. Belt glazed or hardened from
heat and excessive slippage
NOISE DIAGNOSIS
Noises generated by the accessory drive belt are
most noticeable at idle. Before replacing a belt to
resolve a noise condition, inspect all of the accessory
drive pulleys for alignment, glazing, or excessive end
play.
1. Remove foreign objects from
pulley grooves. Replace belt.
2. Replace belt
1. Align pulley(s)
2. Clean pulley(s). Replace belt if
necessary
3. Clean rust from pulley(s)
4. Replace pulley. Inspect belt.
5. Replace belt
1. Inspect/Replace tensioner if
necessary
2. Replace belt and clean pulleys
3. Replace faulty component or
bearing
4. Replace belt.
DR
CORRECTION