Question 1

What could cause transmission fluid to drip from the transmission vent?

Accepted Answer

The answer of What could cause transmission fluid to drip...

Question 2

Technician A says the transmission output shaft seal is prone to leakage. Technician B says a worn transmission rear bushing may contribute to output shaft seal leakage. Who is correct?

Accepted Answer

Both technicians are correct. The transmission output shaft seal can indeed be prone to leakage, and a worn transmission rear bushing can contribute to or exacerbate this leakage by allowing excessive movement or misalignment of the shaft, leading to seal wear or failure.

Question 3

A growling noise that occurs when the transaxle is in neutral, the vehicle is not moving, the engine is running, and the clutch is engaged is most likely caused by the ______ bearing.

Accepted Answer

The growling noise in this scenario is most likely caused by the input shaft bearing. When the clutch is engaged and the vehicle is in neutral, the input shaft is still spinning, and a faulty bearing can cause noise.

Question 4

Gold-colored particles in the transmission fluid are an indication of worn ______.

Accepted Answer

The answer of Gold-colored particles in the transmission fluid are...

Question 5

When installing a ball bearing that is a press fit (tight)onto the main shaft, pressure should be applied to the _____ race.

Accepted Answer

When installing a ball bearing that is a press fit onto the main shaft, pressure should be applied to the inner race. This ensures that the force is directly transmitted to the shaft without putting undue stress on the balls or the cage of the bearing, which could damage the bearing. Applying pressure to the outer race in this scenario could cause misalignment or damage since the force is not being directly applied to the component (the shaft) that the bearing is being fitted onto.

Question 6

Technician A checks the engine and transmission mounts by running the engine at 1,500 rpm with the park brake on and lightly applying the clutch, while an assistant observes the movement of the engine and transmission. Technician B checks the mounts by applying 100 ft-lbs. of torque to the drive shaft with a torque wrench while measuring the movement of the engine with a dial indicator. Who is correct?

Accepted Answer

Technician A's method is a common practice for checking engine and transmission mounts, as it simulates a load on the mounts and allows for observation of excessive movement. Technician B's method is not a standard procedure for checking mounts and could potentially cause damage.

Question 7

The dog (clutch)teeth of the synchronizer are rounded. Technician A says  the synchronizer should be reused. Technician B says the movement of the synchronizer sleeve on the shaft should be checked. Who is correct?

Accepted Answer

When the dog (clutch) teeth of the synchronizer are rounded, it indicates wear that can prevent proper engagement, leading to transmission issues. Therefore, the synchronizer should not be reused, making Technician A incorrect. Technician B is correct because checking the movement of the synchronizer sleeve on the shaft is important for ensuring proper operation and identifying potential issues.

Question 8

Prior to disassembling the transmission/transaxle, clean the unit with a ______.

Accepted Answer

Prior to disassembling the transmission/transaxle, it is important to clean the unit thoroughly to remove any dirt, grease, or debris that could contaminate the internal components during disassembly. Cleaning solvents, degreasers, and steam cleaners are all effective methods for cleaning the unit, making all the provided options correct.

Question 9

Technician A says broken or worn engine and transaxle mounts can cause a transaxle to have shifting problems. Technician B says poor shift boot alignment cannot cause a transaxle to jump out of gear. Who is correct?

Accepted Answer

Technician A is correct because broken or worn engine and transaxle mounts can indeed cause misalignment or undue stress on the drivetrain components, leading to shifting problems. Technician B is incorrect because poor shift boot alignment, while less common, can potentially cause or contribute to a transaxle jumping out of gear by interfering with the proper engagement of the gear lever.

Question 10

Manual transaxle input shafts are typically supported by ______ bearings.

Accepted Answer

The answer of Manual transaxle input shafts are typically supported...

Question 11

Technician A says spinning bearings with compressed air is a good way to dry them. Technician B says spinning a bearing with air may cause it to be damaged. Who is correct?

Accepted Answer

Spinning a bearing with compressed air can indeed cause damage due to the potential for the bearing to spin at speeds higher than its design limits, leading to premature wear or failure.

Question 12

A car jumps out of gear into neutral when decelerating or going down hills. Technician A checks the shift lever and internal gearshift linkage. Technician B says the clutch pilot bearing could be the problem. Who is correct?

Accepted Answer

Both A and B are correct because the shift lever and internal gearshift linkage could be worn or damaged, causing the car to jump out of gear. The clutch pilot bearing could also be worn or damaged, causing the car to jump out of gear when decelerating or going down hills.

Question 13

Manual transmission/transaxle lubricants in use today include ______.

Accepted Answer

Manual transmission/transaxle lubricants can include automatic transmission fluids, engine oils, and multiple viscosity gear oils, depending on the manufacturer's specifications and the specific requirements of the transmission system.

Question 14

A rough growling noise occurs when the engine is running, the transmission is in neutral, the clutch is engaged, and the vehicle is not moving. Technician A says the input shaft bearing may be faulty. Technician B says the countergear bearing may be faulty. Who is correct?

Accepted Answer

Both the input shaft bearing and the countergear bearing can cause a rough growling noise under the conditions described, so both technicians are correct.

Question 15

Technician A checks the transmission mounts by pushing up and down on the transmission while observing the mounts. Technician B says if the case moves up but not down, the mounts require replacement. Who is correct?

Accepted Answer

Technician A is correct in checking the mounts by observing movement, and Technician B is correct in stating that if the case moves up but not down, it indicates worn mounts that need replacement.

Question 16

While discussing transmission/transaxle rebuilding procedures, Technician A says shims located under bearing cups should always be replaced. Technician B keeps all shims and bearing races together and identified for reinstallation in their original location. Who is correct?

Accepted Answer

Technician B's approach of keeping all shims and bearing races together and identified for reinstallation in their original location is correct because it ensures that the components maintain their original clearances and settings, which is crucial for the proper operation of the transmission or transaxle.

Question 17

Technician A says most transmission identification numbers include the model, gear ratios, manufacturer, and assembly date. Technician B says the transmission ID number is located on the driver's side door pillar. Who is correct?

Accepted Answer

Technician A is correct because transmission identification numbers often include details such as the model, gear ratios, manufacturer, and assembly date. Technician B is incorrect because the transmission ID number is typically found on the transmission itself or in the vehicle's documentation, not on the driver's side door pillar.

Question 18

Technician A says hard shifting in all gears may be caused by a single worn synchronizer assembly. Technician B says hard shifting in all gears may be caused by incorrect clutch linkage adjustment. Who is correct?

Accepted Answer

Hard shifting in all gears is more likely due to incorrect clutch linkage adjustment, as it affects the engagement and disengagement of the clutch across all gears. A single worn synchronizer would typically affect only one gear.

Question 19

Which of the following will NOT cause gear clash?

Accepted Answer

The answer of Which of the following will NOT cause...

Question 20

Technician A says a transmission noise is caused by something internal if it is most noticeable during a test drive. Technician B says the noise is caused by the clutch if the noise disappears when the clutch is disengaged. Who is correct?

Accepted Answer

The answer of Technician A says a transmission noise is...

Quiz 39: Manual Transmission and Transaxle Service