Question about 1999 GMC Suburban
I have 2 buttons on my truck each button controlls four wheel hi and low and two wheel high and low. the light only comes on when i push on the outer edge of the panel. does this light have to be on to make sure it is engaged. i have it on 2 wheel low now and the light only comes on when it wants to or if i push on the panel. does thie affect performance?
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Posted on Jan 02, 2017
Check the switch on the transfercase remove the vacume lines if there is oil in them the switch has to be replaced and the lines should be cleaned out you should also check under the battery tray to make sure the boot is not ripped that controls the leaver to engage the front axel
Posted on Feb 16, 2009
I just fixed a friend of mines 96 yukon...shift to neutral press 4H and u can hear the actuator make noise (we even replaced it with a new one his idea and the same thing happen as old one), so as he hit the switch for 4H i layed under it (on 4 jack stands) and I could hear the motor on the transfer case make a loud noise (well thats working) and before all this I asked him did u check all your fuses (he said guarnteed to be all good) one night it was bothering me so i looked through the owner manual for the yukon and in the fuse box on driver side by the door there are (2) fuse for the 4wheel drive unit,pull one of the fuses good...pulled the other one and it was blown put in a new fuse and it works like brand new..pull fuse for anything that has to do with 4 wheel drive componants,
Posted on May 03, 2009
try going into reverse for 10 feet then go to drive for 10 feet that might help if not it is to the wiring to you 4x4 engage system (wires to your wheel hub)
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Posted on Jul 04, 2009
bad trasfer case selector motor common problem i ve a ton of these replace that motor and youll have 4 wd again ,the part is costly about $ 300.00. hope this helps.
Posted on Dec 13, 2009
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