How does the 4WD work on a Ford Ranger pulse?
How does the 4WD work on a Ford Ranger pulse?
So when 4wd is selected, a long, full vacuum pulse (45 seconds according to my factory service manual) is put on the hub and released. This fully compresses and releases the white cylinder which unlocks the cylinder on itself, making it long, so it pushes on the ring gear and locks the hub.
How does a low vacuum pulse work on a Ranger?
To go back to 2wd, a “low” vacuum pulse is put on the hub (for 10 seconds) and released. This low vacuum pulse is supposed to partially compress the cylinder and release it, causing it to latch on itself, becoming physically short, so it does not push on the ring gear and the hub disengages.
Where are the vacuum hoses on a Ford Ranger?
Vacuum Diagram Definitions Abbreviation Description A/CL Located in the air cleaner A/CL DV Air Cleaner Diverter Valve A/CL BI MET Air Cleaner Bi-Metallic Valve A/CL CWM Air Cleaner Cold Weather Modulator
What’s the White Thing in the hub on a Ranger pulse?
The white two-piece “cylinder thing” is what either holds the ring gear in (thus locking the hub) or allows the ring gear to push itself out (thus unlocking the hub). The key to understanding how the PVHs work is understanding the white two-piece cylinder thing that is in the hub.
So when 4wd is selected, a long, full vacuum pulse (45 seconds according to my factory service manual) is put on the hub and released. This fully compresses and releases the white cylinder which unlocks the cylinder on itself, making it long, so it pushes on the ring gear and locks the hub.
To go back to 2wd, a “low” vacuum pulse is put on the hub (for 10 seconds) and released. This low vacuum pulse is supposed to partially compress the cylinder and release it, causing it to latch on itself, becoming physically short, so it does not push on the ring gear and the hub disengages.
The white two-piece “cylinder thing” is what either holds the ring gear in (thus locking the hub) or allows the ring gear to push itself out (thus unlocking the hub). The key to understanding how the PVHs work is understanding the white two-piece cylinder thing that is in the hub.
