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What engine problem is most likely when the temperature gauge climbs steadily on a hot grade, and what helps prevent it?
- A.Overheating is caused by cold fuel
- B.Turning off the fan prevents it
- C.Overheating from a hard-working engine and a marginal cooling system; using the right gear, reducing load on the engine, and keeping the radiator and coolant in good condition help prevent it
- D.Overheating cannot be prevented
Correct answer
C. Overheating from a hard-working engine and a marginal cooling system; using the right gear, reducing load on the engine, and keeping the radiator and coolant in good condition help prevent it
Why
A long grade at high ambient temperature asks the cooling system for its maximum while airflow may be low. Selecting a lower gear so the fan and water pump spin faster, and stopping safely before the gauge reaches the danger zone, protects the engine.
Manual topic: Hot Weather - Engine Heat · From the General Knowledge practice bank (GK-321).