MECHANICAL SYSTEM TEST [FS5A-EL]

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Mechanical System Test Preparation

1.  Apply the parking brake and use wheel chocks at the front and rear of the wheels.

2.  Inspect the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS [LF, L3].) (See ENGINE COOLANT PROTECTION INSPECTION [LF, L3].)

3.  Inspect the engine oil. (See ENGINE COOLANT LEVEL INSPECTION [LF, L3].)

4.  Inspect the ATF levels. (See AUTOMATIC TRANSAXLE FLUID (ATF) INSPECTION [FS5A-EL].)

5.  Inspect the idle speed. (See ENGINE TUNE-UP [LF, L3].)

6.  Inspect the ignition timing. (See ENGINE TUNE-UP [LF, L3].)

Line Pressure Test

1.  Perform mechanical system test preparation. (See 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 400C) to the line pressure inspection port and replace the gauge of the SST (49 0378 400C) with the SST (49 B019 901B).

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3.  Start the engine and warm it up until the ATF reaches 60—70 °C {140—158 °F}.

4.  Shift the selector lever to the D range.

5.  Read the line pressure while the engine is idling for the D range.

6.  Read the line pressure while the engine is idling for the R position and M (1GR, 2GR) range in the same manner as in Steps 4—5.

7.  Stop the engine, then replace the SST (49 B019 901B) with the gauge of the SST (49 0378 400C).

8.  Start the engine.

9.  Firmly depress the brake pedal with the left foot.

10.  Shift the selector lever to the D range.

Caution

•  If the accelerator pedal is pressed for more than 5 s while the brake pedal is pressed, the transaxle could be damaged. Therefore, perform Steps 11 and 12 within 5 s.

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 the N position and idle the engine for 1 min or more to cool the ATF.

14.  Read the line pressure at the engine stall speed for the M (1GR, 2GR) range and R position in the same manner as in Steps 9—13.

Warning

•  Removing the SST when the ATF is hot can be dangerous. Hot ATF can come out of the opening and badly burn you. Before removing the SST, allow the ATF to cool.

15.  Remove the SSTs.

16.  Install a new square head plug in the inspection port.

Evaluation of line pressure test

Stall Test

1.  Perform mechanical system test preparation. (See Mechanical System Test Preparation.)

2.  Start the engine and shift the selector lever to R position.

Caution

•  Do not maintain WOT in any position/range for more than 5 seconds, or transaxle damage will occur.

3.  Firmly depress the brake pedal with the left foot, and depress the accelerator pedal to floor (WOT) with the right.

4.  When the engine speed no longer increases, quickly read the engine speed and release the accelerator pedal.

5.  Shift the selector lever to N position and let the engine idle for 1 minute or more to cool the ATF.

6.  Perform stall tests of D, M (1GR, 2GR) ranges in the same manner.

7.  Turn off the engine.

Evaluation of stall test

Time Lag Test

1.  Perform mechanical system test preparation. (See Mechanical System Test Preparation.)

2.  Start the engine and warm up the engine until the ATF temperature reaches 60—70 °C {141— 158 °F}.

3.  Shift the selector lever from N position to D range.

4.  Use a stopwatch to measure the time it takes from shifting until engagement is felt. Take 3 measurements for each test and average the results using the following formula.

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5.  Perform the test for the following shifts in the same manner.

•  N position→R position

Evaluation of time lag test