Re: Speedo and Hypertech?(not the bathing suit)
Sounds to me like the speedo stepper motor is on the way out. My 03 Avalanche (same cluster) had that prob.. the speedo would be a little off.. then as time went on.. it would jump around.. and sometimes read 0. After a restart it would work fine for a while. I thought 'old school' and figured something with a loose speedo cable.. but there are no more cables! all electronic.. I was out of warranty and dealer said something about 'stepper' motor (little electronic thingy in there).
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03 Yellow Mobile Nuclear Fallout Shelter
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