Tach doesn't work

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08-21-2008, 08:56 AM

turboost

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Tach doesn't work

I just got a 2004 2500 and the tach will not move. Any suggestions on were to start looking? I have a CEL thats on all the time if that matters at all. I've never had a tach problem so kind of lost. Thanks for any help

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08-21-2008, 09:31 AM

dhpro

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There was a bulletin on the speedo/tach. I had mine replaced about 1-2yrs ago under warranty. R/

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08-21-2008, 09:46 AM

KySilverado

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Yeah chances are its the stepper motor. The device that drives/attaches needle. A new clusteter or replace the motor on the board. Common issue all kinds of stepper motors on e-bay.