Symptoms - Engine Cooling

Symptoms - Engine Cooling

Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Diagnostic System Check - Vehicle. Initial Inspection and Diagnostic Overview

Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the Cooling System. Refer to Checking Aftermarket Accessories.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ Inspect the surge tank reservoir for the proper coolant level.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections. Component Tests and General Diagnostics

Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ Engine Overheated Indicator Always On Engine Overheated Indicator Always On
^ Engine Coolant Temperature Indicator Always On Engine Coolant Temperature Indicator Always On
^ Low Engine Coolant Indicator Always On Low Engine Coolant Indicator Always On
^ Engine Overheating Engine Overheating
^ Loss of Coolant Loss of Coolant
^ Thermostat Diagnosis Testing and Inspection
^ Coolant Heater Inoperative (Gasoline) Coolant Heater Inoperative (Diesel) Coolant Heater Inoperative
^ Engine Fails To Reach Normal Operating Temperature Engine Fails To Reach Normal Operating Temperature
^ Fan Clutch Diagnosis Testing and Inspection