I"m having problems with my blazer lt 2000.what use to happend before all lights on the dash board where all the switches are to select all wd 2wd 4hi 4loand neutral use to light up for a second or so and I use to hear a click on the passenger side all the time the lights light up.just drove the car now and all of those lights where on almost all the time!stoped the car,when lights whent off pressed 4low and it switched it with no problem as all the others 4 hi all wd and 2hi.do not understand where the problem is.??????any ideas??????

 

about a week ago I was looking around the engine if I see that something is not wright and I seen one of the hoses was off of the vacuum selenoid valve.put it back on,still the same thing,lights flashing!