Circuit/System Testing
- Ignition OFF, disconnect the boost source hose from the boost control solenoid, connect the J 35555
to the boost source hose.
- Engine running, observe the gage on the J 35555
for a reading equal to or greater then 15 inch Hg.
- If less than 15 inch Hg, repair the boost vacuum source hose or the intake manifold port for a restriction or blockage.
- Ignition OFF, connect the vacuum source hose to the boost solenoid.
- Disconnect the boost signal hose from the bottom port of the bypass valve actuator and connect the J 35555
to the boost signal hose.
- Engine running, observe the gage on the J 35555
for a reading of 0-1 inch Hg.
- If greater than the specified range, replace the boost control solenoid.
- Engine running, command the boost control solenoid to 0% DC with a scan tool. Observe the gage on the J 35555
for a reading equal to or greater than 15 inch Hg.
- If less than the specified range, test the boost signal hose for a restriction or blockage. If the boost signal hose tests normal, replace the boost control solenoid.
- Disconnect the inlet vacuum signal hose from the top of the bypass valve actuator, and connect J 35555
to the inlet vacuum signal hose.
- Engine running, observe the gage on the J 35555
for a reading equal to or greater than 15 inch Hg.
- If less than 15 inch Hg, repair the inlet vacuum signal hose or the intake manifold port for a restriction or blockage.