A hydroboost brake system has a hard pedal and reduced braking performance. Which of the
following would result in this condition?
Aerated power steering fluid
3 multiple choice options
One of a vehicle's brake lights is inoperative. All other lights are functioning normally. Which of
the following should be checked first?
The bulb
3 multiple choice options
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results in a soft spongy brake pedal
aerated brake fluid
is a one way air valve used on a vacuum brake booster systems. A hydroboost brake booster
uses fluid pressure, and a vacuum brake booster uses vacuum pressure.
vacuum check valve
produces pressure for the hydroboost unit
power steering pump
uses pressure from the poer steering system instead of vacuum as a source of power assist.
, hydroboost system
a loss of power steering pressure will have a significant effect on the
hydroboost brake assist booster
in order to diagnose hydroboost brake booster that isn't vacuum operated
check the power steering belt and inspect the lines and hoses for leaks
The TPMS warning light goes out after driving the vehicle for several miles. The MOST likely
cause of this condition is:
Low tire air pressure
3 multiple choice options
An out of round tire causes
vibration that increases with vehicle speed
A weak or dead TPMS battery will
illuminate the TPMS warning light
A faulty wheel speed sensor will affect
an indirect TPMS system
A rear-wheel-drive vehicle with an automatic transmission has a vibration that increases with
vehicle speed. There is a loud clunk when the transmission is shifted from park to drive or
reverse. Which of the folling is causing this condition?
Loose and worn Universal Joints
3 multiple choice options
An unbalanced driveshaft would ____, but cause no clunking sounds.
cause vibration with vehicle speed
Loose flywheel bolts cause
noise in manual transmissions
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