4x4 not working

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4x4 not working - 6/30/2008 4:54:13 AM    4thgenssuck   Posts: 20 Joined: 3/16/2007 Status: offline i have a 2000 4x4 lt...well about three weeks ago i was driving to work in a thunder storm and all of a sudden i see a yellow light pop on my dash out the corner of my eye.well its the service 4wheel drive light...everything was fine and working then the light comes on a my 4wheel drive switch lights all go out...anybody knows what it is? i checked the fuse and i have plenty of fluid..i tried to look for messed up vac lines..i dont know what to look for..thanks for any info guys... Post #: 1

RE: 4x4 not working - 6/30/2008 8:14:46 AM    noom14921992   Posts: 273 Joined: 3/29/2008 Status: offline check the codes. any error light has a computer code that can be checked at an auto parts store. hope that helps _____________________________ 1998 Chevy blazer 4.3LS , 4wd, 4dr, auto trans. (in reply to 4thgenssuck) Post #: 2

RE: 4x4 not working - 6/30/2008 10:31:23 PM    4thgenssuck   Posts: 20 Joined: 3/16/2007 Status: offline can i run the code myself with a paper clip and count the flashes or do i need to hook up a scan tool?? (in reply to noom14921992) Post #: 3

RE: 4x4 not working - 7/1/2008 5:14:13 AM    swartlkk Posts: 14532 Joined: 5/1/2005 From: Waterloo, NY Status: offline If you have auto4wd (auto button on the dash), then you must use a scan tool.  Otherwise, you can use the DIY article that lastcoupe wrote (although I think it has been clipped to 4000 characters...). _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to 4thgenssuck) Post #: 4

RE: 4x4 not working - 7/1/2008 11:00:01 PM    4thgenssuck   Posts: 20 Joined: 3/16/2007 Status: offline yup i have auto 4x4.man that sucks..can auto zone do this or do i have to take it to chevy? (in reply to swartlkk) Post #: 5

RE: 4x4 not working - 7/2/2008 4:27:13 AM    swartlkk Posts: 14532 Joined: 5/1/2005 From: Waterloo, NY Status: offline Tech2 or equivalent scan tool is required to access the TCCM of an auto4wd optioned vehicle.  Any garage that has the GM enhanced data packs for their snap-on, etc scan tools should be able to access and read the codes. _____________________________ Kyle- 04 Rainier My Restoration Projects Please Do Not PM for Tech Help (in reply to 4thgenssuck) Post #: 6

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