STALL TEST
1. Perform mechanical system test preparation. (See
MECHANICAL SYSTEM TEST PREPARATION
.)
2. Start the engine.
3. Firmly depress the brake pedal with the left foot.
4. Shift the selector lever to the D range.
5. Gently depress the accelerator pedal with the right foot.
6. When the engine speed no longer increases, quickly read the engine speed and release the accelerator
pedal.
7. Shift the selector lever to the N position and idle the engine for 1 min or more to cool the ATF.
8. Perform a stall test of the M range and R position in the same manner as in Steps 3--7.
9. Turn off the engine.
Engine stall speed
ENGINE STALL SPEED POSSIBLE CAUSE
Evaluation of stall test
EVALUATION OF STALL TEST POSSIBLE CAUSE
z
Oil pump malfunction
z
Oil leaking from D range or R
position hydraulic circuit
Constant pressure without fluctuation in hydraulic pressure
to throttle in D range and R position
z
Line pressure control solenoid
malfunction
z
Control valve body internal
malfunction
Current to throttle does not change in D range and R
position
z
TCM internal malfunction
z
Connector malfunction
Hydraulic pressure in R position is not higher than D range
z
Primary regulator valve malfunction
CAUTION:
z
If the accelerator pedal is depressed for more than 5 s while the
brake pedal is depressed, the transaxle could be damaged.
Therefore, perform Steps 5 and 6 within 5 s.
z
Perform the test at least 3 times and calculate the average.
Position/range
Engine stall speed (rpm)
D, M
2,637
R
2,555
Condition
Possible cause
2008 Mazda CX-9 Grand Touring
2008 TRANSMISSION Automatic Transaxle (AW6A-EL, AW6AX-EL) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:29:30 AM
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