Holden rodeo 4x4 not engaugeing

the front axle actuator is stuck engaged. the actuator is located on the right side of the front axle. the part is easily replaceable.

The Selectable Four Wheel Drive (S4WD) Front Axle consist of the following components:
• Differential Carrier Housing
• Differential Case Assembly
• Inner Axle Shaft
• Intermediate Shaft Bearing Assembly (located on the right side of the oil pan)
• Electric Motor Actuator
The front axle on Selectable Four Wheel Drive (S4WD) model vehicles uses a disconnect feature mounted on the right side of the oil pan in order to engage and disengage the front axle. When the driver engages the 4WD system, the Transfer Case Control Module sends a signal to the electric motor actuator to energize and extend the plunger inside. The extended plunger moves the clutch fork and clutch fork sleeve across from the clutch fork outer gear that is splined to the right side wheel drive shaft to the clutch fork inner gear that is splined to the inner axle shaft. The locking of the two gears allows the axle to operate in the same manner as a semi-floating rear axle. A propeller shaft connects the transfer case to the front axle. The differential carrier assembly uses a conventional ring and pinion gear set to transmit the driving force of the engine to the wheels. The open differential allows the wheels to turn at different rates of speed while the axle continues to transmit the driving force. This prevents tire scuffing when going around corners and premature wear on internal axle parts. The ring and pinion set and the differential are contained within the carrier. The axle identification number is located on top of the differential carrier assembly or on a label on the bottom of the right half of differential carrier assembly. The wheel drive shafts are completely flexible assemblies consisting of inner and outer constant velocity CV joints protected by thermoplastic boots and connected by a wheel drive shaft.

How To Install Repair Replace 4x4 Front Axle Actuator Chevy Trailblazer...

four wheel drive is engauged hit the button and should go off.

Fix your car right away by clicking the link I attached
GMC Envoy 2002 to 2009 Service Workshop Repair manual

it is in the tranfer case because you can't get it in 4x4 at all
now if it went in 4x4 drive and the front wheels don't engauge its the front end

make sure your in nutural, or park then if you have hub locks turn them to locking position. then shift small shifter if available into 4 wheel low or high. or may have just a push button to engauge. then shift into low or high. then you may use your regular stick to shift or just shift into drive w automatic.

check your front axle shift motor probably bad.

try resetting the shift module located inside behind passenger side kick panel,its white with a led light on top.

humming noise come from wheel bearing normally when you go in straith line and you turn just abit on one sid or the other if the noise louder on one side thats a bearing thanks pierre

You differential need to get service, with location shop price will varies but shouldn't cost more than $200.