As the title says, My Speedo Doesn't Work When the Engine is Cold. When i get in and start it up even if I wait 10 mins for the engine to warm up, when i start driving it jumps up and then down to 0. After I drive for 15 mins or so its fine. Not sure whats wrong. Please help.
You might want to check the electrical connection where the wire 'tape' enters the instrument cluster. I had a similar problem and carefully disconnecting cleaning and re-plugging the wire solved the problem.
