Does any one know what black box might be the cause of my 4x4 coming in and out? someone said that it failed a safe test or something any one know what the name of the box is?

 

there is a rev limiter that does not allow the 4x4 to engage if you hit the switch over 3500 rpm's.what are you experiancing.

 

while triing to push snow the 4x4 will come in and out, backing up the 4wheels work fine just wondering what black box is up front that would cause this?

 

Sounds more like a hub problem.When was the last time the oil was changed in them and/or wheel bearings adjusted?

 

no a guy did a test on it and said it failed a safe test or some thing and that it was a black box that needed to be replaced. do you know what box he would be talking about?

 

its called front hub engagement limiter on mine its the lr83/lr44 module located under the front cover.you might first want to make sure there is enough fluid+ no play in the bearings.

 

Hey fast, I looked in the service book and it is not showing anything like a black box. All I see is the "awd hub coils". then you have the CDI, Rev Limiter and Reg/Recti. so they may be talking about the coils not passing or breaking down......

 

Well thanks alot guys let you know tomorrow what it was. this is a great site!!