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Re: 2004 C4500, speedo @70 mph and temp gauge pegged
Posted to HD/Fleet Forum on 3/15/2007 1 Reply

Hi, sounds like you have an information problem on the serial data gateway. With tech2 you can go in and clear the codes on the [...] check selection of the scan tool in body/IPC section of the scan [...] you do not have a scan tool you can try disconnecting t... Login to read more.

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