04/02/2026
OVERHEATING SERIES – PART 2
Every engine is designed to operate optimally at a specific temperature.
At this temperature, fuel burns efficiently, oil lubricates properly, and engine components function as intended.
The engine relies on the coolant temperature sensor to know when it has reached this optimum working temperature.
When an engine continues to run below optimum temperature, it remains in warm-up mode(open loop mode).
This leads to poor fuel combustion, increased fuel consumption, and the inability of the engine to properly evaporate moisture.
Over time, this cold-running condition allows contaminants to mix with engine oil, encouraging sludge buildup and gradual loss of engine efficiency.
On the opposite end, when the temperature rises beyond the designed range, the risk becomes overheating.
One often-overlooked component that can contribute to this is the radiator cap.
If it cannot maintain the correct system pressure, coolant circulation and boiling point are affected, increasing the likelihood of overheating.
This is just one of the causes.
The others will be discussed in the next series.
