Why 4wheel drive lite keeps flashing - 2002 Mitsubishi Montero Sport

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U have problems in the lower part, solenoid.

It will eventually. most likely the electrical connections under truck got wet and stops the operation your explaining. My 03 yukon xl does this all the time. when i shut it off next day i start and it works. sometimes the 4 lo light comes on yet it is still in 2 hi. other days they all flash. somedays the red nuetral light is on yet i'm driving. Damn electronics. My ford explorer is the same way. I never get the underbody wash either as this leads to two days of flashing.

sounds like the vacuum switch on top of the transfer case is bad.

It is the shift motor for the 4wheel drive - only problem is that a shop has to program the new shift motor to the blazer or it will keep doing the same thing

the vacuum lines run to the hubs behind the brake rotors on the front wheels

I have the same trouble. It seems a relay is keeping it in 4wheel drive. I havne't solved the trouble yet. It may be a loose or corroded wire in the connector to the TCCM located in the passenger kick panel. Dealer part about $450 or more. For the moment I took out the fuse for the 4 wheel drive. It is located in the lower right hand side in the fuse the box under the hood. It disengages the 4wheel drive and I replace the fuse if I need the 4wheel drive.

Make sure you have activated your hubs.

there is NO '4wheel drive emergency' light on a 2006 Tucson.

Try to replace the front diff Actuator, and you would like to check all fuses with a test lite for any burnt fuses, Check for any cracked wires as well.