"Bob F" > wrote in message
...
> !994 caravan 3.3L 4 speed automatic 182,000 miles
>
> IT has been jumping to limp mode very frequently the last couple weeks. I
> discovered today that if I turn off the overdrive, the problem does not
> happen. Does anyone have any ideas about what this info might tell me
> about the problem?
>
> I have changed the pan screen/fluid, checked the speed sensors tightened
> the battery cables and added an extra ground strap to the chassis.

Is the van throwing any codes? If so what/when?