VARIABLE TUMBLE SOLENOID VALVE CONSTRUCTION/OPERATION [L8. LF, L3]
id0113z1148100
Construction
• Mainly composed of the solenoid coil, spring, and plunger.
Operation
Energized
• The solenoid coil magnetizes, pulling the plunger. The passage between A and B ports opens due to the plunger being pulled, and intake manifold vacuum is applied to the actuator.
Not energized
• The intake manifold vacuum passage is blocked, and the passage between ports B and C opens, depressurizing the actuator.
LF
L8, L3
.
|
1
|
Energized
|
|
2
|
De-energized
|
|
3
|
Port A (to intake manifold)
|
|
4
|
Port B (to actuator)
|
|
5
|
Coil
|
|
6
|
Plunger
|
|
7
|
Spring
|
|
8
|
Port C (to atmosphere)
|