Road Test
NOTE:
Before road testing, check transmission fluid level, idle speed and control pressure cable adjustment. See appropriate AUTOMATIC TRANSMISSION SERVICING article in TRANSMISSION SERVICING section.
- During road test, transmission should upshift and downshift at approximate speeds shown in appropriate SHIFT SPEED SPECIFICATIONS table. All shifts may vary somewhat due to production tolerances or tire size. The important factor is quality of shifts. All shifts should be smooth, responsive and with no engine speed flare-up.
NOTE:
If transmission shift point delay feature is used (see Figure), the 2-3 upshift under light throttle (partially depressed accelerator pedal) will be higher with engine cold.
- Slipping or engine RPM flare-up usually indicates clutch or band problems. Slipping clutch or band in particular gear can usually be identified by noting transmission operation in all gear positions and comparing which internal units are applied in those positions. See CLUTCH & BAND APPLICATION CHART .
- This process of elimination can be used to detect any unit which slips and to test proper operation of good units. Cause of malfunction usually cannot be decided. Most conditions may be caused by leaking hydraulic circuits or sticking valves. Unless an obvious condition exists, transmission should never be disassembled until hydraulic pressure tests have been performed.
CLUTCH & BAND APPLICATION CHART
| Selector Lever Position |
Elements In Use |
| "D" |
| 1st Gear |
B-2 Brake & One-Way Clutch |
| 2nd Gear |
B-1 Brake & B-2 Brake |
| 3rd Gear |
B-2 Brake & K-1 Clutch |
| 4th Gear |
K-1 Clutch & K-2 Clutch |
| 5th Gear |
K-1 Clutch, K-2 Clutch & Overdrive Brake |
| "3" |
| 1st Gear |
B-2 Brake & One-Way Clutch |
| 2nd Gear |
B-1 Brake & B-2 Brake |
| 3rd Gear |
B-2 Brake & K-1 Clutch |
| "2" |
| 1st Gear |
B-2 Brake, K-2 Clutch & One-Way Clutch, |
| 2nd Gear |
B-1 Brake & B-2 Brake |
| "R" |
B-3 Brake, K-2 Clutch & One-Way Clutch |
| "N" & "P" |
All Clutches & Bands Released |