Exam 43: Automatic Transmission and Transaxle Service

The shape of the transmission's ____________________ can sometimes be used to identify the model of the transmission.

Where is the kickdown switch normally located?

Technician A says a prerequisite to accurate road testing analysis includes knowing what bands and clutches are applied in a particular gear range. Technician B says slipping conditions can be caused by a leaking hydraulic circuit. Who is correct?

Technician A says thumps and grinding noises are often caused by bad thrust washers. Technician B says noise that is engine speed related and occurs in all gear ranges, including Park and Neutral, is likely caused by a bad planetary gearset. Who is correct?

What transmission problems can be caused by broken or loose driveline mounts?

Technician A says transmission fluid overheating can be caused by a defect in the engine cooling system. Technician B says transmission cooler leaks can be diagnosed by removing and plugging the radiator hose inlet and outlet, then pressurizing the radiator with 50 to 70 psi of shop air while checking for bubbles in the transmission fluid. Who is correct?

Name four causes of low fluid pressure.

Typically, transmission oil pressure should not drop more than ____________________ psi ____________________ kg/cm²) between shifts.

What tool is needed to properly adjust transmission bands?

Low fluid levels can cause ______.

Synthetic fluids tend to look and smell burnt after normal use; therefore, the appearance and smell of these fluids is not a good indicator of the fluid's condition.

How much fluid should flow through the cooler during a twenty-second test (cooler return line disconnected)?

What is the first step in removing a transmission?

A low fluid level may be caused by a leak in all of the following except:

Red fluid leaking from the bellhousing is an indication of a defective ____________________.

The ____________________ test checks the holding capacity of the torque converter stator's overrunning clutch and certain transmission clutches and bands.

What tool is needed to perform a stall test?

A plugged transmission cooler line or a restricted cooler can cause the vehicle to stall when shifted into reverse.

Describe the stall test procedure.

When performing a stall test, the throttle should be held wide open for ten seconds.