1991 Caravan Transmission problem

My transmission is having shifting problems. If I accelerate the trannie shifts fine in the lower mph of 0 - 40, but around 40 - 60 mph the engine rpm's are high and the trannie won't shift. This also occurs if I am trying to pass a car or use an entrance ramp. It will gear down just fine, but acts like it won't transfer power. as a matter of fact, if I keep the gas down it will continue to not transfer power until I let off the gas a little. When I do that, it will shift. I'm not sure if this is the transmision slipping, a vacuum module (although I can't find one or any reference to one in the repair manual), or a linkage problem. I have checked the fluid levels and all are ok, and the fluid is not burnt and does not smell burnt.

Any suggestions would be greatly appreciated.

Thanks,

Pat Rogers

My transmission is having shifting problems. If I accelerate the trannie shifts fine in the lower mph of 0 - 40, but around 40 - 60 mph the engine rpm's are high and the trannie won't shift. This also occurs if I am trying to pass a car or use an entrance ramp. It will gear down just fine, but acts like it won't transfer power. as a matter of fact, if I keep the gas down it will continue to not transfer power until I let off the gas a little. When I do that, it will shift. I'm not sure if this is the transmision slipping, a vacuum module (although I can't find one or any reference to one in the repair manual), or a linkage problem. I have checked the fluid levels and all are ok, and the fluid is not burnt and does not smell burnt.

Any suggestions would be greatly appreciated.

Thanks,

Pat Rogers
hi pat i also have a 91 caravan that had the same problem and all i did was change the tranny pan gasket and filter and now she works fine hope this helps

hi pat i also have a 91 caravan that had the same problem and all i did was change the tranny pan gasket and filter and now she works fine hope this helps


Thanks for the suggestion. I tried this and it helped some, but it is back to it's old tricks again. I am thinking the trannie is in need of an overhaul. I was hoping that maybe a speed sensor or something might be causing this, but it really feels like the trannie is slipping. I tried tightening the bands but that too did not help any.

Any other suggestions??

Thanks