Dodge 2000 DURANGO Service Manual page 240

7 - 38 COOLING SYSTEM
REMOVAL AND INSTALLATION (Continued)
Fig. 57 Automatic Belt Tensioner—Belt Removal/
Installation
1 – IDLER PULLEY
2 – TENSIONER
3 – FAN BLADE
(1) Attach a socket/wrench to pulley mounting bolt
of automatic tensioner (Fig. 57).
(2) Rotate tensioner assembly clockwise (as viewed
from front) until tension has been relieved from belt.
(3) Remove belt from idler pulley first.
(4) Remove belt from vehicle.
INSTALLATION
CAUTION: When installing serpentine accessory
drive belt, the belt must be routed correctly. If not,
engine may overheat due to water pump rotating in
wrong direction. Refer to (Fig. 58) for correct engine
belt routing. The correct belt with correct length
must be used.
(1) Position drive belt over all pulleys except idler
pulley. This pulley is located between generator and
A/C compressor.
(2) Attach a socket/wrench to pulley mounting bolt
of automatic tensioner (Fig. 57).
(3) Rotate socket/wrench clockwise. Place belt over
idler pulley. Let tensioner rotate back into place.
Remove wrench. Be sure belt is properly seated on
all pulleys.
(4) Check belt indexing marks. Refer to Automatic
Belt Tensioner—5.2L/5.9L for more belt information.
Fig. 58 Belt Routing—5.2L/5.9L Engine
1 – TENSIONER
2 – GENERATOR PULLEY
3 – IDLER PULLEY
4 – A/C COMPRESSOR PULLEY
5 – WATER PUMP PULLEY
6 – POWER STEERING PUMP PULLEY
7 – CRANKSHAFT PULLEY
The tensioner is equipped with an indexing arrow
on back of tensioner and an indexing mark on ten-
sioner housing. If a new belt is being installed, arrow
must be within approximately 3 mm (1/8 in.) of
indexing mark. Belt is considered new if it has been
used 15 minutes or less. If this specification cannot
be met, check for:
• The wrong belt being installed (incorrect length/
width)
• Worn bearings on an engine accessory (A/C com-
pressor, power steering pump, water pump, idler pul-
ley or generator)
• A pulley on an engine accessory being loose
• Misalignment of an engine accessory
• Belt incorrectly routed. Refer to (Fig. 58)
ACCESSORY BELT REPLACEMENT—4.7L
ENGINE
NOTE: The belt routing schematics are published
from the latest information available at the time of
publication. If anything differs between these sche-
matics and the Belt Routing Label, use the sche-
matics on Belt Routing Label. This label is located
in the engine compartment.
DN