hi there!the 4wd for my 2000 blazer works perfectly.but sometimes, the service 4wd and all the 4 4wdlights on thedash flashes for a second or so.sometimes once a day,sometimes5-10 times!I have looked under the car and have seen oil dripping from the gearbox,well not dripping but the end of the gearbox was wet and dirty!and two days ago I was looking around the engine and found that one of the houses was off from the solenoid valve I have put the house back on.but the lights still flashing maybe not that often as withuot the huose.thanks for your opinions!!!

 

it will flash to let you know to change your gear oil, or when it's getting low.

 

I will be going to the garage on saturday to check the oil level>thanks!