After five burst tyres apparently caused by the weight of the vehicle I've had a succession of power failures on my 18 month old 2.8 diesel Chrysler. It's broken down perhaps ten times in two months. Worst of all today, the power died on me when I was driving at 70mph with a car full of kids, resulting in everybody getting thrown forward, car skidding as speed dropped suddenly to 30mph, and car behind swerving sharply to avoid hitting us.
The dealer who sold us the car has been bullshitting us for months saying they could find nothing wrong. We had the car looked at by an independent specialist and he found that the car was leaking power overnight and that internal electrics had been wrongly wired.
When I discussed this with the Chrysler dealership one of their tecnicians admitted off the record that all Voyagers were prone to electrical problems because of the drain on the battery. They have too much it for the battery to cope with. This was supported by a Chrysler call out expert who attends vehicle breakdowns. He said they were forever attending call outs.
My advice would be NEVER buy a Voyager or Grand Voyager, they are potential death-traps.