Are you sure they put American voltage in the new battery and not
British electricty. Could produce Kilos and not Miles.
Kidding.
Did you jump start the car? A voltage spike may have blown a fuse,
possibly in the alternator, that sometimes effects sending a speed
signal to the speedometer. I think something shorted.
> I put a new battery in my Volvo and now I don't have a working
> speedometer or tachometer and the odometer reads in kilometers. And the
> service engine light is blinking constantly. Any ideas?
> I put a new battery in my Volvo and now I don't have a working
> speedometer or tachometer and the odometer reads in kilometers. And the
> service engine light is blinking constantly. Any ideas?
Unfortunately, it sounds like you're blown the instrument
microprocessor. I'd try disconnecting the battery, leaving it
disconnected for about 30 minutes and reconnecting. Hope for a "reboot"
to solve the problem.

Signature
Mike F.
Thornhill (near Toronto), Ont.
Replace tt with t (twice!) and remove parentheses to email me directly.
(But I check the newsgroup more often than this email address.)
Inno - 11 Aug 2006 05:27 GMT
I guess I am lucky to still have the original battery in my 1998 V70!
Wonder how long it will last with Canadian winter starts?
BTW, still have the original exhaust system too. The brakes and front
end are another story: much $ spent over the 215,000 km life of this
car so far.
Inno
> > I put a new battery in my Volvo and now I don't have a working
> > speedometer or tachometer and the odometer reads in kilometers. And the
[quoted text clipped - 11 lines]
> Replace tt with t (twice!) and remove parentheses to email me directly.
> (But I check the newsgroup more often than this email address.)