Asked by Chels Marie on Sep 24, 2024
Verified
During a cylinder leakage test, air is heard coming from the throttle body.Which of these is the most likely cause?
A) A burned exhaust valve
B) A burned intake valve
C) A blown head gasket
D) A cracked block
Cylinder Leakage Test
A test performed on a suspect cylinder to determine where the pressure is going. The cylinder leak detector uses the shop air supply and a regulator to pressurize the cylinder, and the rate of leakage is displayed on the gauge.
Throttle Body
A component of the air intake system that controls the amount of air flowing into an engine's combustion chamber.
Burned Intake Valve
A valve in the engine that has been damaged by excessive heat, leading to loss of efficiency or engine failure.
- Identify prevalent issues in engines through the use of proper diagnostic techniques.
Verified Answer
SM
Suhail Moosa3 days ago
Final Answer :
B
Explanation :
A burned intake valve is the most likely cause of air being heard from the throttle body during a cylinder leakage test. This is because the intake valve's function is to let air into the cylinder, and if it's burned or damaged, air can leak back through the intake system, making a noise at the throttle body.
Learning Objectives
- Identify prevalent issues in engines through the use of proper diagnostic techniques.