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front diff grinding sound can be caused by half-locked solenoid... so he's onto something. Nonetheless the leak is also something to address (and fast) regardless of the root cause of the problem there...

Good find, finally. However front diff grinding due to low oil will be constant and not intermittent. Still double check the wheel bearing, as wheel bearing noise starts with intermittent behaviour then become all time feature if you ignore.

and THAT is something they were not able to identify at al habtoor? I mean - have they even looked under the car? does every driver in this country need to be a mechanic in order to have a reliable car?

I was thinking the same about the half-locked solenoid or actuator, but in that case it would keep showing the blinking 4x4 lights on the dash i presume ? Another thing that's bugging me is that in 2H the freewheeling clutch disconnects the front drive shaft, so the diff should not be rotating or causing noises in 2H, or am i also wrong here and there is still some kind of connection on one wheel ?

Hi @rroker..that is good progress. If there is oil leak in the front diff why they didn’t check the oil levels across all transmission system.. must be low and could be also overdue for change which can cause such noise. I would do that before jumping to parts replacement

This would have caused the engine to overheat instantly, as water and pressure constantly leak. That's the last stage. My views: 6 liter depletion isn't normal and you would have felt it much earlier before this car switching-off episode. Something is leaking through the radiator or its hoses for sure. Car switched off is the last stage and Im afraid and sorry to say that most likely 9 out 10 times with full engine overheat, the head gasket goes instantly. Probably you might be lucky as you were at slow-moving speed and not on highway or off-road. Don't drive the car until you can get hold of a good mechanic available to minimize the extent of damage (if it's done). Get the coolant pressure check. Get compression test of all cyl, that can 100% tell the engine health. If variance of more than 10-15% in any cyl. surely head gasket is gone. All cyl should read above 120 PSI or Google Patrol compression number to cross-check.

Sorry guys, my car is not ready i need to withdraw. Enjoy it.