Technician A says that a cracked exhaust manifold can affect engine operation. Technician B says that a leaking lower intake manifold gasket could cause a vacuum leak. Which technician is correct?

Question

Quizplus · Accepted Answer

Both statements are correct. A cracked exhaust manifold can lead to a decrease in engine efficiency and performance issues, while a leaking lower intake manifold gasket can indeed cause a vacuum leak, which can affect the air-fuel mixture and engine performance.

Technician a Says That a Cracked Exhaust Manifold Can Affect