New vss and speedo still bounces all over.....

[Dan NJ]

So while I'm driving it will bounce up to 50 then back down. What I have noticed if as I hit the throttle it will bounce up but when I let off it sits as 0.

Any advice would be appreciated guys

[ellis93]

Check your vss connection. Those barrel connector prongs can be loose and cause this.

Fwiw the sensors I buy (have bought) came with one.

[Dan NJ]

Are you talking about the wires connecting it to the harness or plug? Cuz the wires I soldered in and shrink wrapped

[ellis93]

The plug for the sensor itself.

[CumminsPower59]

Check the drive that the VSS goes into. Make sure stuff isn't all worn out, causing the drive for the VSS to slip and catch.

[Dan NJ]

Check the drive that the VSS goes into. Make sure stuff isn't all worn out, causing the drive for the VSS to slip and catch.

That's what I was kind of thinking , can I buy one of them new from anywhere?
The truck was auto and at the same exact time the trans blew the speedo dropped out, now I have a nv4500 in it with the original 23spline 205 (I built a 29/23 adapter). The odometer still clicks away no issue