Dodge Sprinter 2006 Manual page 826

7 - 4 COOLING
CONDITION
INADEQUATE HEATER PERFOR-
MANCE. GUAGE MAY OR MAY
NOT READ LOW.
HEAT ODOR
POSSIBLE CAUSES
1. Heavy duty cooling system, and
cooler ambient temperatures.
2. Obstruction in heater hoses.
3. Water pump damaged.
1. Damaged or missing drive line
heat shields.
2. Thermal viscous fan drive dam-
aged.
CORRECTION
1. None. Normal condition.
2. Remove hoses, remove obstruc-
tion.
3. Replace water pump.
1. Repair or replace damaged or
missing heat shields.
2. Check thermal viscous fan drive.
(Refer to 7 - COOLING/ENGINE/
FAN DRIVE VISCOUS CLUTCH -
DIAGNOSIS AND TESTING)
VA