I have a problem with a 91 Camaro speedo. When you start the car the speedo does not work but after about 10 to 15 min it slowly comes alive. The car does have a VSS system on it rather than a cable for the speedo. I checked and the weather-pack connector at the tranny seems to be in good condtion. More likely would the problem be in the VSS unit in the tranny or in the speedo head itself? Also I forgot to mention the car has a 3.1 and auto o/d tranny (sorry I don't know the model)

Hank is Here

 

Also the odometer and cruse do not work