Trying to fix super select lights

[marcthelegend]

I had an issue where i couldn't change between 2H / 4H when in motion, it was caused by using the spare tyre of all things! I believe it would've created a difference in speeds between the front and rear wheels.

Same goes for turning when trying to change mode, front wheels spin at a different speed to the rear wheels and causes it to not quite match up as it should, often creating a grinding noise.

Providing that the shaft move in when engaging 2H and out when engaging 4H then thats working well, only other part that fails is the sensors in the transfer case which i've read are costly to repair / replace.

Cheers,

Marc

[Knightmayre]

I'm having the same issue- in 2wd the 4wd lights flash but when put into 4wd they light up solid instantly so I am assuming that it's stuck in 4wd.
Also when I try to engage the centre diff the light for that flashes and won't go off until I put it back in 2wd.

I'm getting vacuum at both sides of the rod thingy that goes to the diff so I am guessing that the solenoids are working OK.

I can't drive it right now as I am still waiting for the sheetmetal place to finish modifying my bull bar brackets.

I've checked that site that explains how to test the super select system but it goes over my head.

Any advice on how I should proceed?

Thanks
Dave

[marcthelegend]

I'm having the same issue- in 2wd the 4wd lights flash but when put into 4wd they light up solid instantly so I am assuming that it's stuck in 4wd.
Also when I try to engage the centre diff the light for that flashes and won't go off until I put it back in 2wd.

I'm getting vacuum at both sides of the rod thingy that goes to the diff so I am guessing that the solenoids are working OK.

I can't drive it right now as I am still waiting for the sheetmetal place to finish modifying my bull bar brackets.

I've checked that site that explains how to test the super select system but it goes over my head.

Any advice on how I should proceed?

Thanks
Dave

I'd be inclined to think the sensors in the transfer case, if its stuck with the front wheels locked (actuator is pulled back) it'll still go into 2H (mine's been 'locked' for around 3 years now) but eventually it will throw an error code.

When switching into 4H the actuator moves out to engage the front diff with the driveshaft and the transfer case moves its own actuator to engage the driveshaft.

[phillipp]

what does it mean if its only going into gear some times as when i change it the shaft isnt always doing what i want it to but the lights say that it is?

[marcthelegend]

The shaft is a very primitive design, its just a spring loaded diaphragm so it always returns to 4H when the car is turned off or if there is a failure with the solenoids.
They are well known to fail and the most common symptom is a car that either wont go into 4H (stuck in 2H) or will switch between 2/4 but after a while will the centre diff light will start to flash (stuck in 4H)

There really isn't a great deal that can go wrong with the actuator itself unless its been impacted like mine did.

I'd say (without seeing it with my own two eyes) that if it's intermittently not doing what its instructed to do that the solenoids are not working as they should (sticking) .. some people have has success spraying contact cleaner into them, mine however did not. a full replacement from Aliexpress set me back around $28 and my problem is now resolved.

Cheers,

Marc

[phillipp]

can i fit 92 model cvs on to 94 model paj

[cool_dube]

Hi folks,

A question on shifting from 2H to 4H on Super Select II - when engaging 4H for the first time after the car has been idle for a few days, the (upper) green lights blink for 10 sec or so before turning solid. Thereafter, for every subsequent engage/disengage, they change immediately. Is this normal behavior?

Thanks in advance.

[TC.Barky]

Hi folks,

A question on shifting from 2H to 4H on Super Select II - when engaging 4H for the first time after the car has been idle for a few days, the (upper) green lights blink for 10 sec or so before turning solid. Thereafter, for every subsequent engage/disengage, they change immediately. Is this normal behavior?

Thanks in advance.

Normal. Need trailing throttle and car moving.

[nj swb]

Normal. Need trailing throttle and car moving.

Yes. Theoretically, this should fix it. Worst case, you might need a gentle bend - as each wheel travels at a slightly different speed, that can help the disconnector to engage (or disengage, when going 4H to 2H).

[cool_dube]

Normal. Need trailing throttle and car moving.

Thanks, mate! My understanding is that the actuator pushes/pulls the actuator shaft in/out using vacuum power. If so, why does the car need to be in motion for that?

[Drewan]

Super Confused select has a different normal in every car. Im on my 3rd gen 2. First had to be rolling foward , second came out when stopped. Latest needs to be put in reverse. Nust accept what ever works and be happy if its consistent

[cool_dube]

Did a quick check of the 4H engagement system today. Put the car on ramp and had my mech slot across 2H and 4H repeatedly. I could see the actuator shaft moving in/out couple of times before it stopped doing so. I then asked the guy to move the car forward a few inches and lo, I could see the shaft moving again. So, the car has to be in motion indeed, for this mechanism to work consistently. That said, the fact that the whole system is dependent on a bunch of rubber pipes carrying vacuum - quite prone to fault given the vulnerability of rubber tubes to rodent attack, corrosion, etc. - does not match up to the robust SUV that the Pajero is. Why could they not have given something like the Borg Warner mechanism with electronically engaging FWHs. Thoughts?

[Drewan]

But when it works it keeps working its,easy to forget that these are in some cases 30 years old and still working. The trick is to flick it in and out occasionaly

[cool_dube]

But when it works it keeps working its,easy to forget that these are in some cases 30 years old and still working. The trick is to flick it in and out occasionaly

Agree! BTW, what is the flip-side of keeping the Pajero in 4H on a perpetual basis, other than marginally higher fuel consumption? Is it detrimental for the central differential in the long run?

[Drewan]

Ok the basics made easy 4h isnt 4h as we know it 4H-is more All wheel drive ,and 4H Locked center is 4wheel drive. Thats why most of us tow in 4h on the black top some just leave it in 4H all the time and if you actually notice an increase in fuel use in 4H your cheaper than I am.