Dodge dakota 2002 Service Manual page 295

7 - 8 COOLING
COOLING (Continued)
CONDITION
TEMPERATURE GAUGE READS
HIGH. COOLANT MAY OR MAY
NOT BE LEAKING FROM
SYSTEMNOTE:
Information on dash cluster is
displayed based on broadcast data
from ECM. DTC will be set for
engine sensor circuit concern.
POSSIBLE CAUSES
1. Vehicle overloaded, high ambient
(outside) temperatures with A/C
turned on, stop and go driving or
prolonged operation at idle speeds.
2. Temperature gauge not
functioning correctly.
3. Air trapped in cooling system
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. Electronically controlled viscous
fan drive not operating properly.
10. Cylinder head gasket leaking.
11. Heater core leaking.
12. Cooling system hoses leaking.
13. Brakes dragging.
14. Accessory drive belt.
15. Water Pump.
CORRECTION
1. Temporary condition, repair not
required. Notify customer of vehicle
operation instructions located in
Owners Manual.
2. Check cluster (Refer to 8 -
ELECTRICAL/INSTRUMENT
CLUSTER - DIAGNOSIS AND
TESTING)
3. Drain cooling system (Refer to 7 -
COOLING - STANDARD
PROCEDURE) and refill (Refer to 7
- COOLING - STANDARD
PROCEDURE)
4. Replace radiator cap.
5. Clean all debris away from A/C
and radiator cooling fins.
6. Drain cooling system (Refer to 7 -
COOLING - STANDARD
PROCEDURE) refill with correct
mixture (Refer to 7 - COOLING -
STANDARD PROCEDURE).
7. Inspect and test thermostat.
Replace thermostat if necessary.
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 -
DIAGNOSIS AND TESTING).
11. Replace heater core.
12. Tighten clamps or Replace
hoses.
13. Check brakes. (Refer to 5 -
BRAKES/HYDRAULIC/
MECHANICAL - DIAGNOSIS AND
TESTING)
14. Inspect. Replace as necessary.
15. Inspect and replace as
necessary.
DR