I've been having this issue for a while but it was only happening like every couple months. Now today, when I hit my brakes pretty hard the speedo wont stop jumping all over. It only jumps when I'm stopped. And it jumps to about 10-15mph. I was wondering if my speed sensors may be dirty. I'm not sure.

Any ideas?

 

check ur ground battery cable.

 

wouldn't my battery light flash if that was the issue

 

check that the speed sensors are seated and connected properly

 

my rpm gauge does the same thing. from what i understand, its a cluster problem. maybe try cleaning all the contacts on the speed sensor and in the cluster. ive never gotten around to doing it.

 

nope. ground cable was loose. Fixed it. At least for now it did. I'll check it tonight after I drive for a while.

 

confirmed. its fixed. thanks!

 

good call! That's not an obvious first thing to check

 

he has experience...