2003 DODGE RAM warning

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Page 328 of 2895

DODGE RAM 2003  Service Repair Manual RADIATOR FAN - 5.9L DIESEL
REMOVAL
CAUTION: If the electronically controlled viscous
fan drive is replaced because of mechanical dam-
age, the cooling fan blades should also be
inspected. Inspect for

Page 329 of 2895

DODGE RAM 2003  Service Repair Manual (5) Install the lower fan shroud into position and
verify the locking tabs have seated.
(6) Connect the battery negative cables.
NOTE:
Viscous Fan Drive Fluid Pump Out Requirement:
After installing a

Page 330 of 2895

DODGE RAM 2003  Service Repair Manual REMOVAL
(1) Disconnect the battery negative cable.
(2) Drain the coolant (Refer to 7 - COOLING -
STANDARD PROCEDURE).
(3) Remove the power cord from the heater by
unplugging (Fig. 8).
(4) Loosen (but

Page 331 of 2895

DODGE RAM 2003  Service Repair Manual (4) Using a suitable size socket, loosen and remove
the block heater element (Fig. 10).
INSTALLATION
(1) Clean and inspect the threads in the cylinder
block.
(2) Coat heater element threads with Mopar

Page 332 of 2895

DODGE RAM 2003  Service Repair Manual 5.7L V-8
The Engine Coolant Temperature (ECT) sensor on
the 5.7L engine is located under the air conditioningcompressor (Fig. 13). It is installed into a water
jacket at the front of the cylinder bloc

Page 333 of 2895

DODGE RAM 2003  Service Repair Manual (2) Disconnect the electrical connector from the
sensor.
(3) Remove the sensor from the cylinder head.
5.9L V-8 Gas
WARNING: HOT, PRESSURIZED COOLANT CAN
CAUSE INJURY BY SCALDING. COOLING SYSTEM
MUST

Page 335 of 2895

DODGE RAM 2003  Service Repair Manual OPERATION
The wax pellet is located in a sealed container at
the spring end of the thermostat. When heated, the
pellet expands, overcoming closing spring tension
and water pump pressure to force the v

Page 336 of 2895

DODGE RAM 2003  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. ALWAYS WEAR SAFETY GLASSES WHEN
SERV