The Sienna suddenly stopped while being driven...then after a few minutes starts

the van stops suddenly while being driven started last Thursday...dangerous. The van is at the dealership service department and the computer was the only thing that was found dysfunctional that could cause the van to suddenly stall.

We have the same issue. Code says coil packs, replaced them, then 5 other things came up replaced/fixed them all. One minute it's fine then it hiccups and stalls. Now we are told its a computer issue. We have an 04 XLE with 234k miles

sooo..they replaced the computer...on their test drive the van did not stall out but the check engine light went on. He is going to try putting another computer in and test drive again.

Hi, From a quick on-line survey (i.e., not based on my awareness), it seems that this sudden stopping in Sienna happened when timing belt (and possibly water pump) had an issue. Just thought I would pass that on - All the best and keep us posted what the findings were and if you are back on the road!