2002 DODGE RAM Service Repair Manual

Page 297 of 2255

DODGE RAM 2002  Service Repair Manual ENGINE COOLANT
THERMOSTAT - 5.9L
DESCRIPTION
CAUTION: Do not operate an engine without a ther-
mostat, except for servicing or testing.
The thermostat on the 5.9L gas powered engine is
located beneath

Page 298 of 2255

DODGE RAM 2002  Service Repair Manual (6) Remove generator. Position generator to gain
access for thermostat gasket removal.
WARNING: CONSTANT TENSION HOSE CLAMPS
ARE USED ON MOST COOLING SYSTEM HOSES.
WHEN REMOVING OR INSTALLING, USE ONL

Page 299 of 2255

DODGE RAM 2002  Service Repair Manual CAUTION: When installing the 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. 21) for corre

Page 300 of 2255

DODGE RAM 2002  Service Repair Manual ENGINE COOLANT
THERMOSTAT - 8.0L
DESCRIPTION
CAUTION: Do not operate an engine without a ther-
mostat, except for servicing or testing.
The thermostat on all gas powered engines is
located beneath the

Page 301 of 2255

DODGE RAM 2002  Service Repair Manual WARNING: CONSTANT TENSION HOSE CLAMPS
ARE USED ON MOST COOLING SYSTEM HOSES.
WHEN REMOVING OR INSTALLING, USE ONLY
TOOLS DESIGNED FOR SERVICING THIS TYPE OF
CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER
6

Page 302 of 2255

DODGE RAM 2002  Service Repair Manual (4) Install thermostat into recessed machined
groove on intake manifold (Fig. 25).
(5) Install thermostat housing (Fig. 25).
(6) Install housing-to-intake manifold bolts.
Tighten bolts to 25 N´m (220

Page 303 of 2255

DODGE RAM 2002  Service Repair Manual (1) To determine if the thermostat is defective, it
must be removed from the vehicle (Refer to 7 -
COOLING/ENGINE/ENGINE COOLANT THERMO-
STAT - REMOVAL).
(2) After the thermostat has been removed, exa

Page 304 of 2255

DODGE RAM 2002  Service Repair Manual FAN DRIVE VISCOUS CLUTCH
- 5.9L/8.0L
DESCRIPTION
The thermal viscous fan drive (Fig. 28) is a sili-
cone-fluid- filled coupling used to connect the fan
blades to the water pump shaft. The coupling all