Diagnosis And Testing - Road Testing
A unique transmission fluid has been developed for this transmission. This fluid is NOT compatible with ATF+4 or any other current FCA US LLC transmission fluid. For specifics about this unique fluid see FLUIDS, LUBRICANTS AND GENUINE PARTS.
Before road testing, be sure the transmission fluid level has been checked and adjusted if necessary. Verify that all Diagnostic Trouble Codes (DTCs) have been resolved.
Observe engine performance during the road test. A poorly tuned engine will not allow accurate analysis of transmission operation.
Operate the transmission in all gear ranges. Check for shift variations and engine flare which indicates slippage. Note if shifts are harsh, spongy, delayed, early, or if part throttle downshifts are sensitive.
Slippage indicated by engine flare, usually means clutch, overrunning clutch, or line pressure problems.
A slipping clutch can often be determined by comparing which internal units are applied in the various gear ranges. The Clutch Application chart provides a basis for analyzing road test results.
| GEAR | A | B | C | D | E | RATIO |
|---|---|---|---|---|---|---|
| 1 | X | X | X | 4.71: 1 | ||
| 2 | X | X | X | 3.14: 1 | ||
| 3 | X | X | X | 2.11: 1 | ||
| 4 | X | X | X | 1.67: 1 | ||
| 5 | X | X | X | 1.29: 1 | ||
| 6 | X | X | X | 1.0: 1 | ||
| 7 | X | X | X | .84: 1 | ||
| 8 | X | X | X | .64: 1 | ||
| P/N | X | X | N/A | |||
| R | X | X | X | 3.30: 1 |