Fiat 1996 Brava Service Manual page 511

Auto transmission and differential Bravo-Brava ^
16v
Description and operation
21-27.
Stall speed test
This test serves to check the performance of the transmission and engine, and is conducted by measur­
ing the maximum rpm that can be reached by the engine with the selector lever at position D and R.
E n The duration of the stall speed test must not exceed 5 seconds.
P4A34AB01
To conduct the stall speed test, proceed as follows:
- chock the vehicle by placing wedges under the wheels;
- apply the handbrake fully;
- start the engine and bring it up to temperature;
- press the brake pedal down hard with the left foot;
- move the selector lever to position D;
- press the accelerator pedal down fully with the right foot and quickly read the maximum speed
reached by the engine.
Stall speed: 2300 ±150 rpm
Repeat the sequence of operations, but moving the selector lever to position R.
Stall speed: 2300 ±150 rpm
Stall speed
Lower than specified value in both
D and R
Higher than specified value in D
Higher than specified value in R
Higher than specified value in both
D and R
Possible causes
* Insufficient engine power
* Incorrect operation of free
wheel on stator of torque
converter
* Insufficient line pressure
* Clutch C1 and C3 slipping
* Incorrect operation of
free wheel F1
* Insufficient line pressure
* Clutch C2 slipping
* Clutch C3 slipping
* Brake B2 slipping
* Insufficient line pressure
* Clutch C3 slipping
34 Publication no. 506.670/06