Hydraulic Pressure Tests: Notes

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Electrical Connectors AT Case

Courtesy of CHRYSLER GROUP, LLC

NOTE:

Before performing the hydraulic pressure tests be certain to disconnect the Variable Line Pressure (VLP) electrical connector (2) at the transmission. Check for and clear any codes that may have been set after performing any hydraulic pressure tests and connecting the Variable Line Pressure (VLP) electrical connector.

Fig 2: Locating Pressure Port Locations

Courtesy of CHRYSLER GROUP, LLC

1 - OVERDRIVE CLUTCH

2 - TORQUE CONVERTER OFF

3 - LOW/REVERSE CLUTCH

4 - 2/4 CLUTCH

5 - REVERSE CLUTCH

6 - UNDERDRIVE CLUTCH

Pressure testing is a very important step in the diagnostic procedure. These tests usually reveal the cause of most hydraulic transaxle problems.

Before performing pressure tests, be certain that fluid level and condition, and shift cable adjustments have been checked and approved. Fluid must be at operating temperature 150 to 200 ° F. (66 to 93 ° C).

Install an engine tachometer, raise vehicle on hoist which allows front wheels to turn, and position tachometer so it can be read.

Attach 300 psi Gauge (special tool #C-3293-SP, Gauge, Pressure 0-300 P.S.I.) to port(s) (1) overdrive clutch, (2) torque converter off, (3) low/reverse clutch, (4) 2/4 clutch, (5) reverse clutch, (6) underdrive clutch required for test(s) being conducted. Refer to Fig 2. Use Adapter Set (special tool #L-4559A, Adapter Set, Pressure) to adapt gauge(s) to transaxle.