In-Shop Test

The governor circuit, shift delay pressures and throttle boost can be checked during this test.

1. Raise vehicle drive wheels off floor. To check shift valves and governor circuit, place transaxle in Overdrive and apply minimum throttle. Note upshift speeds and speeds at which the converter clutch locks up.
2. Transaxle should shift in the following order: 1-2, 2-3, Converter lock-up and 3-4 (O/D). Converter will remain locked when in overdrive. To check downshift valve operation, disconnect throttle valve linkage from throttle lever and pull out to maximum travel. DO NOT  crimp or kink cable.
3. Place transaxle in Drive and apply minimum throttle pressure. Observe speed at which 1-2 upshift occurs. If not within specifications, see GOVERNOR  under AIR PRESSURE TESTS. If shift speeds are too low, the shift modulator valves may be faulty.