CAUTION: When installing the serpentine acces-
sory drive belt, belt must be routed correctly. If not,
engine may overheat due to water pump rotating in
wrong direction. Refer to (Fig. 37) for correct belt
routing. Or, refer to the Belt Routing Label located
in the engine compartment. The correct belt with
correct length must be used.
(6) Position upper fan shroud and fan blade/vis-
cous fan drive assembly.
(7) Be sure the upper and lower portions of the fan
shroud are firmly connected. All air must flow
through the radiator.
(8) Install two fan shroud-to-radiator screws (Fig.
34).
(9) Be sure of at least 25 mm (1.0 inches) between
tips of fan blades and fan shroud.
(10) Install fan blade/viscous fan drive assembly to
water pump shaft.
(11) Fill cooling system. Refer to Refilling the Cool-
ing System in this group.
(12) Connect negative battery cable.
(13) Start and warm the engine. Check for leaks.
Fig. 35 Automatic Belt Tensioner—4.7L
1 – AUTOMATIC TENSIONER
2 – WATER PUMP PULLEY
Fig. 36 Water Pump Installation—4.7L
1 – WATER PUMP
2 – TIMING CHAIN COVER
Fig. 37 Belt Routing 4.7L
1 – GENERATOR PULLEY
2 – ACCESSORY DRIVE BELT
3 – POWER STEERING PUMP PULLEY
4 – CRANKSHAFT PULLEY
5 – IDLER PULLEY
6 – TENSIONER
7 – A/C COMPRESSOR PULLEY
8 – WATER PUMP PULLEY
DN COOLING SYSTEM 7 - 29
REMOVAL AND INSTALLATION (Continued)
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