4x4 Not Engaging...

[Sentry]

1994 ford explorer xlt
auto hubs

I have read most of the threads on this problem, and also had a 1991 ford explorer i had to replace the shift motor on... but this is a new one for me, when i turn the key on i see the lights on the 4x4 switch blink so i assume the switch has power, but when i press 4high i do not get any clicking noise at all from the rear 4x4 controller, at the controller when i press the test switch i get a solid red indicator, any thoughts?

Thanks

 

[jim_axsom]

I dont know if this will help, but I replaces the plastic 4x4 covers on the front wheels that engage the 4x4 and it works now.

 

[86caprirs]

Sounds like shift motor.Check by checking for power to the motor.But it could also be the switch so thats why I say check for power to the motor in 4 high and low.If you got them down to the connector at the shift motor.......then you know the problem.If no power then trace back to the switch.