An automatic transmission has a whine in park and neutral, noisier when cold. What could be the cause?
A) A worn final drive bearing B) Loose planetary needle bearings
C) Loose pump drive chain D) A badly worn pump
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Which of the following would likely cause early upshifts?
▸ Sticking modulator valve
▸ High throttle pressure
▸ Faulty converter
▸ Low line pressure
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Ammeters should be connected ________ with the circuit being tested.
A) Across a load B) In series C) In parallel D) None of these
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Technician A says that an upshift occurs when increasing governor pressure causes the shift valve to move. Technician B says that governor pressure is controlled by engine speed. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
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When a roller clutch unlocks, the rollers _________.
A) Rotate to a position where they allow both inner and outer races to rotate
B) Rotate between the two races like a series of bearing rollers
C) Are wedged between the two races
D) None of these
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Why should a vehicle be towed with the drive wheels off the ground?
A) To reduce the number of miles registered on the odometer
B) To prevent transmission damage due to lack of lubrication
C) To reduce driveline (U-joints and CV joint) wear
D) To help keep the temperature of the ATF from increasing to dangerous levels
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The simple gear set in a LePelletier gear train operates in a ________ ratio.
A) Reverse B) Reduction C) Reaction D) Overdrive
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The input or driving member of the converter is the ________.
A) Turbine B) Impeller C) Stator D) All of these
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How are the fuel injectors controlled in an SFI system?
▸ In groups of six
▸ In pairs
▸ Sequentially
▸ Simultaneously
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What is the potential benefit of an HCCI engine?
▸ More power
▸ Quieter
▸ More aerodynamic
▸ Better fuel economy
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