I have 2000 explorer with (after research im guessing is a 5r55e trans) about a week ago drive and reverse went with the motor revving high and you would move in reverse slowly with high revs but had enough to back up my inclined driveway. 1 & 2 worked perfectly fine for takeoff and turning on the o/d off button I was able to shift into drive once going...I could even turn o/d back on once I got to about 55 and it would drive fine. That worked for about 5 days and then while driving all gears went away and now nothing. I've searched and searched but cant find a clear answer as to what it may be (and I know its hard to diagnose over the net) but it seems like a very common issue with not alot of posted solutions. I assumed it was an internal tranny issue and started the process to remove it tonight and got to the transfer case being ready to drop out. First I dropped the trans pan and the oil was burnt (my fault) but there was not one metal shaving in there, only black material on perhaps the magnet which I took to be normal wearing clutch material? Tested resistance on all solenoids and all shift solenoids as well as EPC and TCC were within spec. Obviously I dont have the trans out yet but I am just asking for any and all thoughts and direction someone can provide as possible issues. I didnt know if it were possible that some internal gear could have broken but I would think I would see some metal and aside from the input shaft being snapped how could I lose all gears. I am no tranny expert so thanks in advance for any help.
How long has your 2000 Ford Explorer had this problem?
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Your symptom of the reverse gear requiring high engine revs to move slowly indicates likely clutch wear to the point of damage being present. This would cause related damage to other gears, and could cause debris inside the valve body / main control among other passages and components.
A proper professional hands on diagnosis should be performed, but my hunch is that a replacement unit is in order.
Thank you for the response. I figured whatever the issue is, it couldn't be good. I'm going to hopefully have time to finish pulling it out this weekend and have a look. Thanks
Thank you for the response. I figured whatever the issue is, it couldn't be good. I'm going to hopefully have time to finish pulling it out this weekend and have a look. Thanks