4L60 (700-R4) Automatic Transmission

1. Prior to beginning line pressure check, check the following:

a. Transmission fluid level.

b. TV cable adjustment.

c. Outside manual linkage.

d. Engine tune.




2. Connect a tachometer to engine and install oil pressure gauge as shown.




3. When checking minimum TV line pressure, apply brakes, then take line pressure readings in gear range and engine RPM indicated in chart.

4. When checking full TV line pressure, tie or hold TV cable to its full extent of travel and apply brakes. Take line pressure readings in gear range and engine RPM indicated in chart.