Engine perfo - Study guides, Class notes & Summaries

ASE-A8 Engine performance Latest 20023 Already Passed If the compression is 5 psi and the oem spec is 140 psi, what most likely is the cause? A, worn piston ring. B, burnt valve. Both A and B What most likely is the cause if the compression doesn't go up during a wet compression test? A, burnt valve. B, worn piston ring. A What most likely is the cause if the compression goes up during a wet compression test? A, burnt valve. B, worn piston ring. B 2. Blue smoke is coming from the exhaust...

Test Bank for Advanced Engine Performance Diagnosis 7th Edition by James Halderman, All Chapters

ASE A8 Engine Performance: Questions & Answers

Engine performance Exam 1 All overhead valve engines ________. - Have the overhead valves in the head An SOHC V8 engine has how many camshafts? - Two Torque is expressed in units of ________. - pound-feet Horsepower is expressed in units of ________. - foots per pound A normally aspirated automobile engine loses about ________ power per 1000 feet of altitude. - 3% One cylinder of an automotive four-stroke cycle engine completes a cycle every ________. - 720 degrees How man...

Engine Performance Final The primary (low-voltage) ignition system must be working correctly before any spark occurs from a coil. Which component is NOT in the primary ignition circuit? - Spark Plug Wires An ion-sensing ignition system allow the ignition system itself to be able to ________. - detect misfire, spark knock, and rich/lean mixture How does a waste-spark ignition system fire the spark plugs? - The same plug always is fired straight or reverse polarity The pulse generat...

Most drive ability complaints thought to be caused by the manual transmissions are actually caused by the driver Magnetic pulse generators are commonly used to send data to the computer about: The speed of the monitored component. Technician A says pulse width modulation (PWM) is measured in a length of time, not a percentage of a cycle. Technician B says that the cooling fan relay is usually controlled by the PCM through PWM. Who is correct? Both A and B When the pressur...

Engine Performance Midterm Winter-blend gasoline a. vaporizes more easily than summer-blend gasoline b. has a higher RVP c. can cause engine driveability problem if used during warm weather d. All of the above - D Vapor lock can occur a. as a result of excessive hear near fuel line b. if a fuel line is restricted c. both a and b d. neither a nor b - C Technician A says that spark knock, ping, and detonation are different names for abnormal combustion. Technician B says that any...

Wet compression test If a piston ring is leaking, this type of test will indicate some compression. If a valve is burned, this type of test will make no difference and indicate the same readings Blue Smoke this means the engine is burning oil. Could be caused by worn piston rings White Exhaust Smoke caused by coolant leaking into one or more cylinders, such as when a head gasket goes bad Worn valve guides and vacuum readings this condition would cause the vacuum gauge ne...

Engine Performance Practice Exam Test. Blue smoke is coming from the exhaust pipe of a vehicle. Tech A says that worn piston rings could be the cause. Tech B says that a bad head gasket could be the cause. Who is right? A. Tech A B. Tech B C. Both D. Neither - CORRECT ANSWER A. Blue smoke means the engine is burning oil, which could be caused by worn piston rings. Technician B is wrong because a bad head gasket would cause coolant to leak into one or more cylinders, resulting in white ...

Test Bank for Advanced Engine Performance Diagnosis 7th Edition by James Halderman, All Chapters 1-29 |Complete Guide A+