Engine Cooling System Overheating: Notes

Establish what driving conditions caused the complaint. Abnormal loads on the cooling system such as the following may be the cause:

• Prolonged idle
• Very high ambient temperature
• Slow traffic
• Traffic jams
• High speed or steep grades

Driving techniques that avoid overheating are:

• Idle with A/C off when temperature gauge is at hot end of normal range.
• Increasing engine speed for more air flow is recommended.