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It is the cluster I had to have my replaced at 40,000. miles . I think they got ahold of some bad ones.

Small stepper motor that controls speedometer needle position has a cracked gear in it.

Yes it is true about the steeper motors, Each gauge has a stepper motor in the back

I had the same problem in my car. I found a website where I had my cluster rebuild for $140. That's a lot cheaper than the $750 that the dealer wanted to replace the speedometer. Here is the address incase you wanna check it out: www.speedometergaugerepair.com

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Q: Why would 2004 Impala speedometer occasionally display false readings?
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