Fiat 1996 Brava Service Manual page 514

Bravo-Brava ^
16v
Auto transmission and differential
Description and operation
21-27.
chock the vehicle by placing wedges under the wheels;
4A34ABOI
apply the handbrake fully;
press the brake pedal d o w n hard with the left foot;
start the engine, warm it up to temperature and check that the idle speed is correct;
move the selector lever to position D;
read the measurement of the line pressure during idling;
fully press the accelerator pedal w i t h the right foot and quickly read the line pressure at the engine's
stall speed.
P W The stall speed test must not exceed 5 seconds in duration.
Repeat the last t w o operations w i t h the selector lever on position R.
Speed
Idling
Stall
Position D (and 1 -2-3)
3.7 - 4.3 bar
3.8 - 4.4 kg/cm
2
10.8 - 12.5 bar
1 1 . 0 - 1 2 . 8 kg/cm
2
Position R (and IM-P)
5.4 - 6.3 bar
5.5 - 6.4 kg/cm
2
14.1 - 16.9 bar
14.4 - 17.2 kg/cm
2
Line pressure
Higher than specified value in
both D and R
Less than specified value in both D and R
Less than specified value only in D
Less than specified value only in R
Possible causes
Fault in pressure control solenoid
Regulating valves faulty
Fault in pressure control solenoid
Regulating valves faulty
Oil pump faulty
Leaks in hydraulic circuit in forward gears
Leaks in hydraulic circuit in reverse and neutra
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