Hello new hoping someone can help with my 06 f150 4.6 supercab 4x4 would really appreciate.So problem occured couple days ago when taking off in mornings speedometer stays at 0 mph and 4x4low comes on when on highway speedometer needle bounces and 4x4 flickers on and off sometimes stays on till it decides to come off new to the 4x4 scene any info would help Thanks

 

 

^this. do the lights in the cluster work?

 

Yes all lights work on first start up gauges flicker at 0 rpm then after 5 seconds goes up to 500 or 600 rpm