Question about 2001 Volvo V70

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While driving down the highway check light came on car started misfiring and lost power. And will now not even start.

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Sounds to me like a broken timing belt. With possibly a seized water pump.

Not an uncommon problem, but since this happened at a high speed accompanied buy high RPM's. I would recomend taking it to a shop for the repair. A lot of motors have what is called an interference engine. This means that when a timing belt breaks and the crank is spinning at high rates of speed, the pistons come up and strike the valves which are not properly closed at the right time, this bends the valves ever so slightly causing them to be inoperable.

This is a massive undertaking as far as auto work goes. The whole upper end of the motor must be rebuilt in order for it to run on all cylinders again.

My water pump assumption accompanies this because these days most cars have the water pump built into the timing. The water pump seizes and that's what causes the timing to be torn to shreds.

If you wish to attempt to change the timing belt and water pump on your own, we can help with that. There is a slim possibility that valves survived, I've seen it - but not often. The changing of the timing is more tedious than it is hard. But there is no way for certain to verify the valves' condition, unless of course you first work hours straight on the timing just to find its not right. Most shops have some very expensive tools that can test the valves without replacing the timing. This of course is where my recommendation of taking it in falls into place.

I'm sorry for being the bearer of bad news on this. But i hope it will at least let you know where you stand.

Thanks for using FixYa, please feel free to rate my service.

Jason

Posted on Sep 05, 2010

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