Newbie with a 4x4 Question

[Lethal8]

First off, Hi I'm Kevin. I just got my hands on a 1995 Tahoe LS 2-door. Gonna be my winter car as my 2011 camaro is not a fan of the snow. First question is what is an "OBS" Tahoe? The real reason I'm he is because the 4x4 doesn't work. The guy I got nit from said it was probably the acuator, he gave me one, but it may be faulty. When I put the truck in 4x4 the 4x4 light doesn't come on, the front driveshaft spins, but the power isn't making it to the wheels. Which made this giant snowstorm a ***** to drive in. Does anyone have any idea of where to start troubleshooting? Also, the abs light is lit, any ideas?

 

[Sp1nn3y]

"OBS" Stands for Old Body Style, Typically 94-99 [i believe, seeing that's how the forums are seperated]

 

[JcKinney]

If that actuator on the front diff isn't engaging, your light won't come on and it won't go into 4wd. After I bought my yukon and the 4wd wouldn't work, I found my actuator wire was cut and someone spliced a toggle switch in. Make sure you're getting power to the actuator. I'm sure sunlit can answer this way better than me, he'll chime in sooner or later.

 

[SunlitComet]

with ignition on, parking brake locked down and shifted into 4wd high and low. Check for battery voltage on the light blue wire on the actuator connector.

 

[SPLmonster13]

My actuator also went out, (around 100k) easy fix! If that's the problem. Sounds like it

 

[gpracer1]

Old Body Style is mostly 92-99 with the 92-95 having TBI engine, and the 96-99 having the Vortec engine.
I think the 92-94 were still called Blazer like mine, and then in 95 or so they became Tahoe.

My 93 4x4 actuator (thermal type) went out on me and I replaced with the updated electronic motor version.