Almost for 3 weeks when i start to drive my car first my speed gauge dont work when i punch a little from upside it stars to work what can be the problem?

 

Well the speedo sensor is located right in front of the tranny mount behind the intake manifold check your connection there and make sure its in tight there is a single 10mm bolt that holds it in. If it is the sensor when your speedo dont work you then you'll notice your mileage isnt changing either.

 

today imechanicer checked no problem with sensor i think its from speed gaughe what can be else?