Set 2; Volume 1. Drive Trains
Which of the following would be considered an overdrive gear ratio?
0.79:1
Which gear ratio would result in no torque multiplication?
1:1
Due to a continuously variable transaxle (CVT) being able to keep an engine at it's most efficient operating speed at all times, fuel economy increases by approximately
25%
If an automatic transmission enters limp-in mode, the transmission or transaxle may only have Park, reverse, and
2nd gear
An average axle ratio to provide a compromise between performance and economy would be
3.50:1
What type of pressure is used by the shift valves to operate the bands, servos, and gearsets?
control
Which of the following is not a basic part of the rear axle assembly?
Gudgeon pin
What can you measure to test an automatic transmission neutral safety switch?
resistance
What a removable carrier, solid axles are commonly held in their housing with
retainer plates
How is pinion gear depth commonly adjusted?
Varying shim thickness
Why should you avoid using compressed air to clean clutch dust off parts?
a clutch disc often contains asbestos
All of the following are basic types of locking front drive axle hubs except
banded
A hydraulic clutch release mechanism has the following basic parts except a
bellcrank
Why should you use a hammer and center punch to mark the pressure plate and flywheel before disassembling the components?
Ensure correct balancing of the clutch during reassembly
How is the friction material attached to the clutch disc?
Riveted to both sides of the disc
What type of constant velocity (CV) joint has a star-shaped inner race?
Rzeppa
Which of the following is not a main component of an automatic transaxle?
Synchronizers
gear sets? best description of the relationship between a power train control module (PCM) and transmission control module (TCM) is the
TCM exchanges data with the PCM
Preliminary checks you should perform before road testing a car include all of the following except
a stall test
The term transaxle refers to
a transmission and a differential combined in a single assembly
Which clutch component is normally replaced any time the clutch is torn down for repairs?
clutch disc (friction disc)
Rear end problems usually show up at
abnormal noises
Constant velocity (CV) joint boots provide a seal for all of the following except
air
Which seal and gaskets should be replaced when a manual transmission is disassembled?
all of them
If a vehicle has over 100,000 miles on the original automatic transmission fluid, but is operating normally, what should you do to avoid slippage problems?
avoid changing the fluid
A removable carrier type differential is designed so the assembly can be removed from the
axle housing
During synchronized operation, which component runs on the side of the drive gear come causing friction between the two?
blocking ring
How is the clutch pressure plate mounted?
bolted to the flywheel face
The clutch release (or throw out) bearing is held by small spring clips on the
clutch fork
When you test a limited-slip differential (LSD), the amount of torque needed to make one axle or differential side gear rotate the LSD clutches is known as
break-away torque
An air test in an automatic transmission may help you detect all of the following except
burnt friction material
When reassembling a manual transmission, how can you hold the needle bearings in place in the countershaft gears?
coat them with a heavy grease
You can normally repair all of these automatic transmission leaks without removing the transmission except the
conveter housing
What is indicated by milky transmission fluid?
coolant in the fluid
Which of the four steel shaft mounted inside the transmission case is locked in the case and normally does not turn?
countershaft
Which gear is actually several years machined out of a single piece of steel and is often called the cluster gear?
countershaft gear
Which of the following is unlikely to cause grinding or gear clashing noise while shifting?
cracked extension housing
What is used to measure drive shaft runout?
dial indicator
Which tool is useful to measure flywheel runout?
dial indicator
If you hold any two members in a planetary headset, what type of gear ratio is achieved?
direct drive
What should you always do when removing a clutch assembly?
disconnect the battery ground
In general, the first step to removing an automatic transmission is to
disconnect the battery or pull the high voltage (HV) battery plug
What component is sometimes used to transferncranksgat power to the transaxle gearbox and allows the transaxle to be located below and to one side of the engine?
drive chain
What ring and pinion problem may create a clunking sound?
excessive backlash
Which condition would most likely cause a dragging clutch?
excessive pedal free travel
All of the following condition typically require transfer case service except
fluid level is even with the filler hole
When checking the fluid level on an automatic transaxle, the following conditions should normally be met except the
front end of the vehicle being raised high than the rear end
The wide part of the ring gear tooth is known as the
heel
The function of a transmission band is to
holdembers of a planetary gearset
When servicing a tripod constant velocity joint, what components should be scribe marked to ensure proper alignment during reassembly?
housing and interconnecting shaft
What type of gears are modern differential ring and pinion gears considered?
hypoid
All of the following are advantages of a transaxle except
improved directional control under hard acceleration
a bad transaxle solenoid can cause any of the following problems except
inability for the lock-up torque converter to engage
Where would you be most likely to find an automatic transmission oil cooling tank in a typical light duty passenger vehicle (not used to pull heavy loads)?
inside the radiator
which of the following is not a general rule to remember when repairing or rebuilding a transaxle?
lightly grind all of the gasket sealing surfaces before reassembly
If an automatic transmission has an "economy" setting, how does the computer conserve fuel?
lower shift points
When the operator moves the gear shift lever, what does the shift linkage move to select a gear?
manual valve
Which of the following gears is/are not a part of the planetary gearset?
moon gear
What type of gearset meshes the same gear teeth over and over during gearset operation?
nonhunting
What type of constant velocity (CV) joint transfers rotating power from the axle shaft to the hub assembly?
outboard
The synchronized hub in a manual transmission is splines on the
output shaft
What type of automatic transmission clutch consists of an inner race, rollers, a set of springs, and an outer race?
overrunning clutch
The bushing or bearing that support the forward end of the transmission input shaft is called the
pilot bearing
To center a clutch disc during installation, you should use a
pilot shaft
Front drive axle problems are usually noticed as any of the following except
pungent odors
Torque multiplication in a torque converter is at a maximum during
quick acceleration
What component on a drive shaft assembly holds the universal joint and transfers torque to the gears in the rear axle assembly?
rear yoke
All of the following are function of the driveshaft except to
remain rigid to prevent vertical movement of the rear axle
What automatic transmission gear operation is achieved when the carrier is held, and the planet gears act as idle gears to drive the ring gear in the backward direction?
reverse
The axle ratio, or differential ratio, in a rear axle assembly is determined by the number of teeth on the
ring and pinion gears
What component in a transaxle differential assembly is turned by a small pinion gear on the output shaft, which in-turn makes the pinion shaft and gear rotate?
ring gear
If you want to increase ring and pinion backlash, move the
ring gear away from the pinion gear
Which automatic transmission component operates the bands?
servo
Which component fits into a groove cut into the sulyncronizer sleeve to transfer movement?
shift forks
What is stored in the transmission control module (TCM) memory to determine when the automatic transmission should shift gears?
shift schedule
Which component is splines to the transmission output shaft and is supported by the extension housing bushing?
slip yoke
What can be achieved with a variable transmission solenoid in an automatic transmission?
smoother shifting
What type of constant velocity (CV) axle shaft is not typically used in front drive axle assemblies?
snub shaft
The clutch housing (or bell housing) may be make of any of the following except
stainless steel
A dual-clutch transmission does everything except
suffer from poor fuel economy
When inspecting a pressure plate, you should look for all of the following except
sufficient friction material
What type of rear drive axle is used when the differential is rigidly mounted on a car's frame?
swing
if you find brass-colored particles when cleaning and inspecting manual transmission parts, which of the following are likely damaged?
syncronizers
which of the following is not part of an automatic transmission clutch assembly?
throw-out bearing
What automatic transmission part performs the same basic function as the clutch in a manual transmission?
torque converter
When one of the rear wheels lacks traction on a vehicle with an open differential
torque flows to the axle that turns easiest
How close together should the automatic transmission bell housing and engine block be before installing the housing bolts?
touching
What of the following is not a driveshaft assembly component?
transmission input shaft
If you find a heavy varnish buildup in an automatic transmission, what action is likely needed?
transmission rebuild
Which part of the torque converter is splines to the input shaft of the automatic transmission?
turbine
How would you typically adjust a hydraulic clutch release mechanism to decrease pedal free travel?
turn the adjusting nut to lengthen the pushrod
A double-cardan constant velocity universal joint is constructed of
two cross-and-roller joints connected by a centering socket and center yoke
Which of the following is not a range provided by most modern transfer cases?
two-wheel drove low (2L)
A worn universal joint can cause the following noises except
whistling