a week ago my tranny wasn't wanting to stick in drive, it seemed like it was slippin but once it got to overdrive it with downshift once I slightly got on it. during that point in time it was slightly cold yet. half a week ago it was warming up, i drove probly a mile, parked, it was idling for about 15 min, got back in put it in revo and in about 2 feet it wanted to "lock up", like it wanted to drive forward at the same time. i was told to drive it on stock for a while. i was on my way up north, drove ten miles and it started leakin tranny fluid through the dust cover. i shut it off for ten min (the temp never went over 140) and drove back home. as far as i know it didn't leak a drop after. today i had a guy drive it to a shop for me and he said it was the strongest tranny he's driven. everything shifted fine. it even shifted into overdrive up a good hill on the pedal. i did have a PO603 or sumthin code, i had it written dowm but its in my truck. it says sumthin about loss of powertrain shifting memory and sumthing about KAM. my truck also at one point in time tuned up wouldnt show any codes til i turned it back to stock. and yesterday it wouldnt let me tune it past 85hp. if somebody could help it would be nice. nobody can give me an estimate and at this time i dont need to be taken. thank you.

 

As mentioned in my previous post,I've got the E4OD in my '94 F250 5.8 L.I've had similar confounding problems in the past with it.Seems like a loose or dirty pin in a harness connector plug may be the cause.Mine seemed to benefit by my unplugging and replugging the pin connectors all the way up to the PCM.Electronic transmissions are now easily confused by voltage irregularities....Gar

 

every thing i find on this code said the same thing etheir loose connection or corroded battery cables so i would have to agree with gary check all connections including your battry clean all connectors and termanals