Tools Required
DT 46450 (DW240-010) Auto
Transaxle Pressure Gage Set
The hydraulic test can inspect the working condition inside the automatic transmission (A/T)
by measuring line pressure in drive (D)/reverse (R) range and idle/stall
condition.
- Wedge the 4 wheels and apply the parking brake fully. Lock the vehicle
in place.
- Install the
DT 46450
to
test the hole (1) for line pressure.
Important: Do not continuously run longer than 5 seconds.
Extreme increasing of oil temperature may occur.
- Fully press on the brake pedal with left foot, shift into drive (D) and
reverse (R) range and measure the line pressure idle/stall condition.
Specifications
| • | The engine idle line pressure in drive (D) is 0.14-0.37 mPa
(20.30-53.70 psi). |
| • | The engine idle line pressure in reverse (R) is 0.59-0.68 mPa
(85.60-98.62 psi). |
| • | The engine stall line pressure in drive (D) is 1.10-1.23 mPa
(159.54-178.40 psi). |
| • | The engine stall line pressure in reverse (R) is 1.58-1.83 mPa
(229.16-265.41 psi). |
Make sure to keep interval for more than 1 minute between stall tests.
Make sure to check that there is no oil leak after installing the
DT 46450
.
Result of Hydraulic Test
| Cause of Failure
|
Higher than standards in both drive (D) and reverse (R)
|
| • | Pressure control solenoid (PCS) failure |
| • | Primary regulator valve failure |
|
Lower than standards in both drive (D) and reverse (R)
|
| • | Primary regulator valve failure |
| • | Oil strainer failure, clogging |
| • | Oil leak for each range circuit |
|
Lower than standards only in drive (D)
|
| • | Drive (D) hydraulic circuit failure |
| • | Forward clutch (C1) failure |
|
Lower than standards only in reverse (R)
|
| • | Reverse (R) hydraulic circuit failure |
| • | Reverse clutch (C3) failure |
| • | 1st and reverse brake (B3) failure |
|
