ROAD TESTING

Before road testing, be sure the fluid level and control cable adjustments have been checked and adjusted if necessary. Verify that all diagnostic trouble codes 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 presure 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.


545RFE CLUTCH APPLICATION CHART

SLP
UD
OD
R
2C
4C
L/R
OVERRUNNING
P–PARK
ON
R–REVERSE
ON
ON
N-NEUTRAL
ON
D–FIRST
ON
ON*
ON
D–SECOND
ON
ON
D–SECOND PRIME
ON
ON
D–THIRD
ON
ON
D–FOURTH
ON
ON
D–FIFTH
ON
ON
D–LIMP-IN
ON
ON
2–FIRST
ON
ON*
ON
2–SECOND
ON
ON
2–LIMP-IN
ON
ON
1–LOW
ON
ON
ON
*L/R clutch is on only with the output shaft speed below 150 rpm.