LV13 Transmission diagnostics

A worn synchromesh baulk ring can cause :

• The gears to crash when being engaged

• Difficulty when disengaging gears

• Excessive vibration on overrun

• Noisy reverse

The automatic transmission stall test is used to check the torque converter operation and transmission slip

• True

• False 

A CVT gearbox uses:

• Epicyclic gearing

• Belt and variable pulley arrangement

• 4, 5 or 6 gear ratios

• Variable gear teeth

What transmission fault could cause the following light to illuminate?

• Stretched clutch cable

• Worn friction plate

• Faulty shift solenoid

• Incorrect tyre sizes

When traction control senses wheel slip it will:

• Reduce RPM and brake both wheels.

• Automatically brake the parallel driving wheel.

• Stop the ABS modulator working.

• Limit the engine RPM and brake the slipping wheel.

What would cause a manual sequential gearbox to jump out of 3rd gear?

• A slipping clutch

• Worn selector balls and springs

• Excessive differential free play

• All answers shown

Which component is the synchromesh hub?

• A

• B

• H

• P

Which one of the following statements is correct?

• Actuators send electrical signals to the ECU

• Sensors receive electrical signals from the ECU

• Fibre optic cables transmit light signals along glass fibres

• Electrical resistance is measured in watts

A compressed clutch spring is said to contain:

• Kinetic energy which becomes potential energy when released.

• Static energy which becomes potential energy when released.

• Kinetic energy which becomes latent energy when released.

• Potential energy which becomes kinetic energy when released.

Which component, when engaged, allows maximum tractive force?

• Transfer box

• Differential lock

• Differential

• Overdrive gear