Four wheel drive on isuzu rodeo

post 3 and still the part you state is named wrong.
my best guess, is the
front alxe lock, up, device. with 2 lines
is that it.
?????
there are only 2 ways, 2 lines
is it so hard to try both ways, on 2 solenoids?

Does yours have AUTO hubs, there are some luxory models have auto hubs, these rely on difference in drive on the axles,(wheel spin) others have manual locking hubs, these actually need to be engaged manually, these require you to twist the centre of the hub to engage and disengage the front hubs, these sometimes require you to reverse to disengage properly, Rodeo had both depending on model. Happy New Year

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

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.

fords are famous for this. Its electronically controlled 4x4(push button) i would start cheap and replace that switch

If you have push button 4-Wheel Drive, it is recommended that you use it every once in a while, in order to keep gunk, rust, and corrosion to build up on moving parts. The mostly likeley (though not definite) reason would be that you let the 4-wheel drive unused for so long that corrosion has built up on the parts and the actuator that engages the 4-Wheel Drive doesn't have the power to engage it past the corrosion. You'll need to take it in to be cleaned, or to have parts replaced. In the future, every month or so, engage 4-Wheel Drive and drive around in some mud, grass, sand, or any other loose ground for a bit, just to keep the parts moving and clean.

The service Four wheel drive light is to alert the operator the system is not being read properly by the ECU.

If the ECU loses contact with or position of the Transfer case actuator motor the service light will come on. Same thing goes for the front diff actuator.

So it may be a bad switch, sensor, or an actual problem in the 4WD linkage. This is not a Oil Change light that you can ignore a few extra weeks - it indicates a problem that should be taken care of ASAP to avoid costlier problems down the road.
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It is due to the cold weather,The fluid is to thick when cold for the actuator to engage the 4wd.

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is it because your not at a stop?

not transfer case motor....there is none on a rodeo....trooper has torque on demand.....rodeo problem is likely shift on fly mtr...mounted on front axle....if u dont use 4wd regularly it sticks and gets stuck.

try doing the change while engine off and in neutral, or engine runnin and in neutral. if not try same in Park. worked for me