TEST THREE-OVERDRIVE CLUTCH CHECK (3rd and 2nd Gear)
- Attach gauge to the overdrive clutch tap.
- Move selector lever to the (OD) position.
- Allow vehicle wheels to turn and increase throttle opening to achieve an indicated vehicle speed of 20 mph. Vehicle should be in 3rd gear.
- Overdrive clutch pressure should read 74 to 95 psi.
- Move selector lever to the (3) position and increase indicated vehicle speed to 30 mph.
- The vehicle should be in second gear and overdrive clutch pressure should be less than 5 psi.
- This test checks the overdrive clutch hydraulic circuit as well as the shift schedule.