Two technicians are discussing variable valve timing. Technician A says that changing the exhaust valve timing helps reduce exhaust emissions. Technician B says that changing the intake valve timing helps increase low-speed torque. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
Question 2
Many technicians always use new pushrods because ________.
A) They are less expensive to buy than clean
B) They wear at both ends
C) Pushrods shrink in length if removed from an engine
D) All dirt cannot be cleaned out from the hollow center
A technician-made adapter used to test exhaust system back pressure.
A tester that uses a blue liquid to check for exhaust gases in the exhaust, which would indicate a ...
When the exhaust is rich, the PCM applies a negative current into the pump cell.
The Location and Timing of Tornadoes
The climate is changing rapidly, and greenhouse gases are the most likely cause.
Regurgitation or insufficiency valve disease