Technician A says adding cold water to an overheated engine can cause aluminum cylinder heads to crack. Technician B says casting defects can cause cracks to appear in engine components. Who is correct?

Question

Quizplus · Accepted Answer

Adding cold water to an overheated engine can cause rapid temperature changes that may cause aluminum cylinder heads to crack, especially if they are already weakened by age or metal fatigue. Additionally, casting defects can also cause cracks to appear in engine components over time. Therefore, both Technician A and Technician B are correct.

Technician a Says Adding Cold Water to an Overheated Engine