2001 chevy colorado speedometer is stuck at 90
Slow down? Or doesn’t that work? What was the question? Oh, yeah, there wasn’t one. Did you have one?
“but officer, I couldn’t have been doing 90. Look the speedometer still says 90!!”
Could be the stepper motor for the speedometer
A mechanic with a professional level scan tool should be able to “sweep the gauges” as part of his diagnosis
A $300 tool won’t perform these kind of tests, by the way
So either pay for a proper diagnosis or get your hands on a decent scan tool