Does speedometer show zero in park and neutral? and only jumps in gear?

 

Jumps only in Gear

 

Suggest having the battery and charging system tested. The speed sensor circuitry during this era seems to be sensitive to excessive ac ripple which can cause the speedo to jump.

 

Yes it is an AWD, I have not checked The axle that didn't even cross my mind never heard of that, BUT i will go check it, Now the Alternator i did have this happen back in 2019 speedo was jumping going crazy until it popped itself had to do a reset to make it work again took it to tranny shop he said that i bulletin just came out about the diodes in the alternator can cause that changed alternator fixed it bad thing about getting a lifetime alternator from advance auto is NOW they will not honor a lifetime they say wear and tear no warranty, BUT will get it checked

 

Speed sensor and TONE wheel hub.

 

 

TONE wheel is important.

 

went to O'Reilly's they tested the alternator voltage passed diodes Failed

 

ok Went to 4 different Advance Auto Store to try to get warranty on the Alternator NOT one would warranty it so FYI on (Advance)
I changed the Alternator and that has fixed the problem

Thanks Guys