Problems with chevy avalanche 2004,4wd 2wd button

Could be several different problems - first step is to check for error codes (DTCs) and follow up if any.

Don't do that , or you will miss your hand . Need new transfer case torque converter .

Give some more details of the problem.

As I recall the 96 blazer had electronic shifting for 2wd to 4wd. There should be a small panel on the drivers dash buttons for 2wd, 4wd lo and 4wd hi.

Simply press the desired button while stationary and if the system is functioning properly then it will shift and the light for the engaged type of drive will be lighted. Generally you would like to be in 2wd for this vehicle.

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You need to remove the carpet on the passengers side and check the wireing harness,take off the tape and visually inspect it.You are likely to find broken splices ,bare wires or wires shorted to each other or to ground.

See if the turn signals work,and the flashers,the problem,is most likely in one of the flashers,they are stuck,the flasher.

should have gotten a ford lol, sorry man, its hard to say, very strange problem

we had same problem,it was caused by shifting trans selector to quick after startup,not waiting for electronics to cycle on initial startup.

Using a test light check for power at the horn while someone pushs the horn button. also check for bad fuses or relays that are very well labeled in your underhood and dashside fuseblocks. If you have power but the horn dont blow, replace the horn. If you dont have power, go back and dig through fuses and relays. One of these will help to fixya!! Good Luck