ASE Exam Study Guide Questions & Answers 2024/2025

ASE Exam Study Guide Questions & Answers 2024/2025 An engine makes a knocking noise with the transmission in DRIVE. The knocking noise is not heard in PARK or NEUTRAL. Which of these could be the cause? A)Excessive main bearing clearance B)Low oil pressure C)A cracked flexplate D)A broken piston ring - ANSWERSC)A cracked flexplate An engine is overheating and has white smoke coming from the tail pipe. The cooling system is pressure tested and will not hold pressure. This could be caused by: A) a blown head gasket. B) a restricted piston oil nozzle. C) a stuck-open thermostat. D) an incorrect PCV valve. - ANSWERSA) a blown head gasket. An engine compression test identifies that one cylinder has low compression. During a leak down test of the cylinder, excessive leakage is observed and air is heard coming out of the tail pipe. Which of these could be the cause? A) Broken piston rings B) A blown head gasket C) A leaking exhaust manifold gasket D) An exhaust valve not seating - ANSWERSD) An exhaust valve not seating