Ford Explorer, slips in reverse and when you put it in drive you have to rev the engine before it will engage. Once engaged it often slips in between 1st, 2nd and then smooths out after 3rd.

If engine revs go high and no forward movement you most likely need a new transmission

My Econoline 250 with 4.2 lost fluid from hose leak, fixed leak everything was normal for 3 days till I drove it on highway. When it went into overdrive lost forward power. Turned off OD and did ok for a while. Lost forward gears slowly, put in fluid, hard to tell when full. Reverse is fine but have to rev up engine to get forward to engage, then everything is fine at lights and such till take out of drive, then have to rev engine to about 2500rpm to engage drive. Help?

1st off has the tranmission fluid and filter ever been replaced? Do that first.

Have you checked trans fluid suspect transmission problem

yes-could be number of things-1st chec fliuid level-try to get car scanned cause its electrontrans also-car is 12 yrs may need rebild there--secure a manual or ask a pro to drive it

considering its winter the best way is to put some thing in front of front tires and try to move forwards if you cant put it in 4 wheel mode and then try it. if you climb over then axles are engaged.

check fluid if it sounds like its slipping thats bad stop driving your trannsmission is going bad

TORQUE CONVERTER OR BANDS

mid level to higher, u have a worn out clutch, replace it before u damage the trans

Try at full stop in neutral switching to 4 wheel auto ,give it a few seconds and if you don,t here it engage try putting it into reverse and then back into neutral and then into drive. If still dosen,t work tranny switch is likely sticking . service or repair.