Stalling when coming to stop-not all the time

“Several times (3 time last 3 months) when coming to stop . Not all the time .van starts bucking and wanted to stall . If I slip transmission into natural problom corrects . Had transmmission looked at , could not find any thing wrong . Also noticed that when going up steep hill with 6 people in van . Van is having diffacult time , losing power .”

When was the last ‘tune-up’ done?

Please identify the vehicle/mileage/engine, etc.

There are many reasons for your problem but without added info from you it will be difficult for us to help. It’s all in the details.