hi guys great forum i'm new here and thought i could get some reasonable suggestions on my trans problems no 1st gear or shifting from 1st to 2nd automatically seems to be stuck in 2nd when you start out very slowly trans seems to slip or shutter until it picks up momentum at 35 to 40mph you can shift manually to drive and continue accelerating no overdrive when button is pressed or will not downshift automatically but you downshift maually to second and it will drop down check engine codes show po743,po755,po760,po765 had the normal explorer idiosincrisces most of it's life but nothing ever like this.... has 112,000 miles fluid full, not burnt,nice reddish color,2000 ford explorer xls 4.0 4wd 5r55e thanxxx.. brian <!-- / message --><!-- BEGIN TEMPLATE: ad_showthread_firstpost_sig --><!-- END TEMPLATE: ad_showthread_firstpost_sig -->


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check connections on your selector switch,i had problems with on shorting out,the tranny went wild because it didn,t know what gear it was in.I am surprised it didn,t go into limp mode which is second gear.

 

It isn't the selector switch. You have electrical circuit codes for all of the solenoids. You have a wiring problem to the solenoid body.

 

Make sure the main transmission harness plug is seated properly.