[naten19]

I have a 01 gmc 2500 ext cab 4x4 6.0l. All gauges work except the speedometer the thing dont even attempt to move. I have replaced all the sensors put a diffrent gauge cluster in it and nothing! When i brought the truck home when i bought it i did notice when you hit the cruise control button it does turn the cruise light on on the dash but wont set it because speedos not reading. Any help would be greatley appreciated i have know idea where to check next been through about everything and havent came up with one thing thats worked. Thanks Nate

 

[murdog94]

Sounds like the PCM isnt sending signal to the speedo then. Also im not 100% but i thought there was still a speed pick up sensor in the tranny? there is a chance the reluctor wheel is shot as well...

---------- Post added at 07:18 AM ---------- Previous post was at 07:14 AM ----------

also dont be offended but have you checked out the fuses??? as i said dont be offended you just didnt mention it so i better ask.