Dodge Sprinter 2006 Manual page 824

7 - 2 COOLING
COOLING SYSTEM
CONDITION
TEMPERATUREGAUGE READS
LOW
TEMPERATURE GAUGE READS
HIGH. COOLANT MAY OR MAY
NOT BE LEAKING FROM SYS-
TEM
COOLI N G SY ST EM DI AGN OSI S - DI ESEL EN GI N E
POSSIBLE CAUSES
1. Vehicle is equipped with a
heavy duty cooling system.
2. Temperature gauge not connect-
ed
3. Temperature gauge connected
but not operating.
4. Coolant level low.
1. Vehicle overloaded, high ambi-
ent (outside) temperatures with
A/C turned on, stop and go driving
or prolonged operation at idle
speeds.
2. Temperature gauge not function-
ing correctly.
3. Air traped in cooling
4. Radiator cap faulty.
5. Plugged A/C or radiator cooling
fins.
6. Coolant mixture incorrect.
7. Thermostat stuck shut.
8. Bug screen or winter front being
used.
9. Viscous fan drive not operating
properly.
10. Cylinder head gasket leaking.
11. Heater core leaking.
12. cooling system hoses leaking.
CORRECTION
1. None. System operating norma-
ly.
2. Connect gauge.
3. Check gauge. Refer (Refer to 8
- ELECTRICAL/INSTRUMENT
CLUSTER - DIAGNOSIS AND
TESTING)
4. Fill cooling system. (Refer to 7 -
COOLING - STANDARD PROCE-
DURE)
1. Temporary condition, repair not
required. Notify customer of vehicle
operation instructions located in
Owners Manual.
2. Check gauge. (Refer to 8 -
ELECTRICAL/INSTRUMENT CLUS-
TER - DIAGNOSIS AND TESTING)
3. Drain cooling system (Refer to 7
- COOLING - STANDARD PROCE-
DURE) and refill (Refer to 7 -
COOLING - STANDARD PROCE-
DURE)
4. Replace radiator cap.
5. Clean all debre away from A/C
and radiator cooling fins.
6. Drain cooling system (Refer to 7
- COOLING - STANDARD PROCE-
DURE) refill with correct mixture
(Refer to 7 - COOLING - STAN-
DARD PROCEDURE).
7. Replace thermostat.
8. Remove bug screen or winter
front.
9. Check viscous fan (Refer to 7 -
COOLING/ENGINE/FAN DRIVE
VISCOUS CLUTCH - DIAGNOSIS
AND TESTING)
10. Check for leaking head gaskets
(Refer to 7 - COOLING - DIAGNO-
SIS AND TESTING).
11. Replace heater core.
12. Tighten clamps or Replace
hoses.
VA