I just got done doing my water pump and timing belt earlier and i just fixed my idling problem and now my speedometer doesn't work.. the rpm still works fine though.. the speedometer was working fine before i fixed the idling problem but now it don't work.. does anybody know what might cause mph not to work??

 

a broken speedometer.

seriously. try a different cluster to see if that is the problem.

 

check to see if the speed sensor is plugged in.
its on the tranny.

 

yeah i checked it yesterday and it wasn't plugged in all the way.. it works fine now.. thanks..