hello people. i am having problems with my speedometer. when i drive at slow speed. the needle starts to spin like crazy. and the car starts jerks like if the govenr kicks in. this is drving me nuts. some told me to replace the senor in the trans but no luck sme problem. i think there is some wire, loose. because some times is fine till i go over a bump and it starts to act up. can some help or if some has wire diagram it would be help full. thanks guys.