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I have a 2006 Chevy Tahoe Z71. What causes a 4x4

I have a 2006 Chevy Tahoe Z71. What causes a 4x4 actulator motor to go out? I am having problems with my and I don't even use the 4x4 function.

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Sometimes the vacuum line going to the actuator cracks.this will cause the diaphram in the actuator to not depress fully. you should be able to press in the diaphram by hand easily,if you cant,then the actuator is bad...usually due to debri getting into it,or from non use.

Posted on Apr 29, 2010


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