Engine Cooling System Overheating: Notes
Establish what the driving conditions were that caused the complaint. Abnormal loads on the cooling system, such as the following, may be the cause:
- Prolonged idle
- Debris blocking the grill or cooling module
- Slight tail wind at idle
- Slow traffic
- Traffic jams
- High speed
- Trailer towing
- Steep grades
- Any accessory addition that fully or partially blocks the grille opening