Riflman

What do the actuators on top of the front coilovers do on the 2005 GX470? Since they don't hook up to air or hydraulics, I don't understand how they operate. I understand that the rear springs are air actuated and I believe the rear shocks are air actuated, but I don't understand how the front works when selecting sport or comfort mode. Can anyone clue me in?

teejnut

iTrader: (6)

The comfort setting dial in the cab adjusts the dampening of the shocks front and rear. The motor on the top of the shocks turns a **** on the shock to adjust the dampening, similar to how aftermarket adjustable shocks work. Similar to this:


​​​​​​The rear airbag is just used to control the height of the rear and not the dampening. The shocks do that. Although having more/less air in the airbag will effect dampening as well.

chiph9

Like teejnut said. The actuator is just a small motor that turns what would be a **** on top of the shaft. This changes the dampening rate of the shock.

Chip H.

LoneHiker

Specifically, it opens/closes a valve that controls how fast fluid is allowed to flow through the shock. Smaller opening = firmer shock and vice versa.