@matthewswo22412 besides the great answer provided by my colleague @jayeff, this sounds like you have an issue with your instrument cluster. I'd start there, check the components as well as the connectors. Check for corrosion etc.
Your speedometer, tachometer and coolant temp are getting the signal from the powertrain control module (PCM). See if these chapters from the SM [document|41294][document|41293] help you to diagnose the issue. I would pay particular attention to the diagnostics of the instrument panel.