Drives in limp mode fine?

[Aladeen]

My 2002 will not move in drive or reverse. Checked fluid it's good. I found no loose wiring or anything obvious. I can start by selecting 1st, then 2nd, then 3rd. After I build rpms in third I switch to drive and sometimes it works. Most of the time I push the rpms so high that the od light starts flashing and I instantly feel it go into limp mode and it actually drives fine. If I do get it to shift while in drive before the od light comes on, it only lasts until I come to a stop then nothing again. As long as it goes into limp mode I can start and stop in drive. Its got me puzzled. Only have one code and it's for p1700. Anyone run into this scenario before?

 

[BrooklynBay]

Welcome to this forum! Don't continue to drive in limp mode. The EPC solenoid is increasing hydraulic pressure to compensate for an internal issue.

 

[Aladeen]

Does it sound like the bands need tightened?

 

[BrooklynBay]

It could have metal fragments in the fluid or an internal one way sprag might have failed. These transmission have 2 of them.

 

[Aladeen]

Is there something I should add to the fluid to collect contaminants or just change it and filter first?

 

[BrooklynBay]

You could replace the fluid & filter, but most likely there might be internal damage.