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Old 12-12-2017, 08:35 AM   #1
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Join Date: Jan 2008
Location: Soutwestern New Hampshire
Posts: 142
no 4X4

my 92 s-10 had 4x4 last year but this year it doesn't engage, the light on console lights saying it is engaged but it doesn't spin the tires/wheels. what is the most common problem or are there more then 1. thanks
2016 GMC Denali 3500, 4x4, crew cab, long bed, Duramax with Allison trans, (Dark Garnet Metallic)
2003 GMC 3500 4X4 Dually Dump (Red)
2007 KZ 41KG Toy Hauler (White with stripes)
2015 Harley FLHTCUTG Trike ( Maroon)
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Old 12-12-2017, 08:43 AM   #2
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Join Date: Oct 2009
Location: canton ga
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Re: no 4X4

My nephew said his did that and it was a vaccuum hose broken .
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Old 12-12-2017, 09:24 AM   #3
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Join Date: May 2015
Location: Alabama
Posts: 7,283
Re: no 4X4

also could be a busted diaphram in the vacuum canister that actually pulls the engagement cable...I've also had the vacuum switch on the t-case go bad
Mongo...aka Greg

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