Road Test
- Before road testing, be certain that fluid level, condition and control linkage adjustments have been checked and corrected as necessary. During test, transmission should upshift and downshift at approximately the speeds shown in Fig 1 table.
- All shifts may vary somewhat due to production tolerances or tire size. The important factor is the quality of the shifts. All shifts should be smooth, responsive and with no slippage or engine speed runaway.
- Slippage or engine runaway in any gear usually indicates clutch, band or brake problems. The slipping unit in a particular gear can usually be identified by noting transmission operation in other selector positions and comparing which internal units are applied in those positions. See Figure .
- This process of elimination can be used to detect any unit which slips and to confirm proper operation of good units. However, the actual cause of the malfunction usually cannot be easily decided.
- Practically any condition can be caused by leaking hydraulic circuits or sticking valves. Therefore, unless an obvious condition exists, DO NOT disassemble transmission until hydraulic pressure tests have been made.
NOTE:
If shift points are incorrect or transmission does not kick down, check accelerator cable adjustments.