Test Procedure

Leak Test Procedure

IMPORTANT:
• This procedure tests On/Off type solenoid valves.
• Visually inspect the physical condition of the solenoid before testing. Inspect the O-rings before and after the test to be sure that they are not cut or damaged.
1. Remove the solenoid from the control valve body. Refer to 1-2 Shift Solenoid Valve Replacement or 2-3 Shift Solenoid Valve Replacement .
Fig 1: Installing Valve Into Bore No. 2 Of J 44246
Courtesy of GENERAL MOTORS CORP.
2. Install the 1-2, 3-4 or the 2-3 shift solenoid valve into bore number 2 of the J 44246  and install the factory retainer clip to retain the solenoid.
Fig 2: Connecting Solenoid Testing Harness To Solenoid
Courtesy of GENERAL MOTORS CORP.
3. Connect the solenoid testing harness supplied with the J 44246  to the solenoid.
IMPORTANT: Do not use air pressure in excess of 827 kPa (120 psi). Excessive pressure will not allow the solenoid ball check valve to seat properly. Recommended air pressure is 345 kPa (50 psi).
4. Apply compressed air to the J 44246  .
5. Air should flow through the solenoid. If air does not flow through the solenoid, replace the solenoid.
6. Connect the solenoid testing harness to the (12 volt) positive and negative (-) battery terminals.
7. Observe if the solenoid is operating electrically. An audible clicking noise can be heard when connecting or disconnecting power.
IMPORTANT:
• All solenoids need to be energized to seal.
• A small amount of air leakage is normal, 21 kPa (3 psi).
8. Observe the air flow through the solenoid. The flow will completely or nearly completely stop. Replace the solenoid if there continues to be an obvious air leak when the solenoid is energized.
IMPORTANT: Inspect the O-rings after the test to be sure that they are not cut or damaged.
9. Install the solenoid into the control valve body. Refer to 1-2 Shift Solenoid Valve Replacement or 2-3 Shift Solenoid Valve Replacement .