Mazda 626 Station Wagon, Workshop Manual

Page: 228 / 577

AUTOMATIC TRANSAXLE
AUTOMATIC TRANSAXLE
MECHANICAL SYSTEM TEST
Mechanical System Test Preparation
1. Engage the parking brake and use wheel chocks
at the front and rear of the wheels.
2. Inspect the engine coolant. (See Section E.)
3. Inspect the engine oil. (See Section D.)
4. Inspect the ATF levels. (See K2-28 AUTOMATIC
TRANSAXLE FLUID (ATF) INSPECTION, ATF
Level Inspection.)
5. Inspect the IG timing. (See F1-21 IGNITION
TIMING INSPECTION.)
6. Inspect the idle speed. (See F1-23 IDLE SPEED
INSPECTION.)
Line Pressure Test
1. Perform mechanical system test preparation.
(See K2-21 MECHANICAL SYSTEM TEST,
Mechanical System Test Preparation.)
Warning
• Removing the square-head plug when the
ATF is hot can be dangerous. Hot ATF can
come out of the opening and badly burn
you. Before removing the square-head
plug, allow the ATF to cool.
2. Connect the SSTs (49 H019 002 and, 49 0378
400B) to the line pressure inspection port, then
replace the gauge of the SST (49 0378 400B) with
the SST (49 B019 901A).
3. Start the engine, then warm up the automatic
transaxle.
4. Shift the selector lever to D range.
5. Read the line pressure at idle engine speed for the
D range.
6. Read the line pressure at idle engine speed for the
D (HOLD), S, S (HOLD), L, L (HOLD) ranges and
R positions in the same manner as in Steps 4—5.
7. Stop the engine, then replace the SST (49 B019
901 A) with the gauge of the SST (49 0378 400B).
8. Start the engine.
9. Firmly depress the brake pedal with the left foot.
10. Shift the selector lever to D range position.
Caution
• If the accelerator pedal is pressed for
longer than 5 seconds while the brake
pedal is pressed, the transaxle could be
damaged. Therefore, perform Steps 11 and
12 within 5 seconds each.
11. Gradually depress the accelerator pedal with the
right foot.
12. When the engine speed no longer increases,
quickly read the line pressure and release the
accelerator pedal.
13. Shift the selector lever to N position and let the
engine idle for 1 minute or more to cool the ATF.
14. Read the line pressure at the engine stall speed
for the D, D (HOLD), S, S (HOLD), L, L(HOLD)
ranges and R position in the same manner as in
Steps 9—13.
Specified line pressure
Position
/range
Line pressure kPa{kgf/cm2, psi>
Idle Stall
D, S, L*
330—470
{3.4—4.8, 48—68}
1,158—1,323
{11.8—13.5,168—191}
R
490—710
{5.0—7.2, 71—102}
1,913—2,128
{19.5—21.7,278—308}
* Includes each HOLD mode
Warning
• Removing the SSTs when the ATF is hot
can be dangerous. Hot ATF can come out
of the opening and badly burn you. Before
removing the SSTs, allow the ATF to cool.
15. Remove the SSTs.
16. Install a new square head plug in the inspection
port.
Tightening torque
5.
0
—9.8 N m {50—
100
kgfcm, 44 — 86 in lbf}
K2-21