Exam 43: Automatic Transmission and Transaxle Service

A leaking transmission case can often be repaired with an epoxy-based sealant.

Two technicians are discussing band adjustment. Technician A says the band adjustment screws are located on the outside of the transmission case. Technician B says the band adjustment screws are located inside the transmission and the transmission pan must be removed to make the adjustments. Who is correct?

Technician A says the only positive way to identify the model of a transmission is by the shape of the oil pan. Technician B says the only positive way to identify the transmission model is by the ID number stamp or sticker on the transmission case. Who is correct?

The transmission's fluid and filter should be changed only when there is an indication of oxidation or contamination.

A technician is diagnosing a car that lacks power during acceleration. There are no DTCs, and a check of the ignition and fuel system does not reveal any problems. Technician A says the exhaust system should be checked for a restriction. Technician B says the stator overrunning clutch inside the torque converter could be slipping. Who is correct?

A technician is diagnosing a transmission fluid leak problem. With the inspection cover removed, there is fluid on the back of the converter shell, but the front of the converter is dry. What is the most likely source of the leak?

Incorrect pressure readings may reveal a possible problem in which of the following hydraulic circuits?

Lubricate seals with ____________________ prior to installation.

____________________ pressure is used as an indication of engine load and influences the speed at which automatic shifts will take place.

Which of these engine control sensors is NOT likely to cause shifting problems?

Spool valves, springs, and other components of the valve body should be cleaned using a wiping rag or paper towel.

A faulty wiring connector will not affect shift timing.

List five places where transmission leaks are common.

A normal vacuum gauge reading while the engine is idling is steady and at _____. The rougher the engine runs, the more the gauge readings will fluctuate.

Some manufacturers require replacement of the transmission cooler whenever the transmission is overhauled.

Technician A uses a 400 psi pressure gauge to test mainline [line pressure]. Technician B uses a 100 psi gauge to test throttle [TV] and governor pressure. Who is correct?

Identify three conditions that must be followed when performing a fluid level check.

Some manufacturers do not recommend pressure testing automatic transmissions.

During rebuilding, what three transmission components should be checked for warpage?

If a problem cannot be identified from an inspection or road test, a ____________________ test should be performed.