Silverado speedometer failure

The used 2000 Silverado I bought about a month ago now has a speedometer and odometer problem... Yestarday while driving home from work I noticed the Speedometer would be
on 0 until I hit about 40 km/h it would then sort of bounce around, it then stop working all together. This morning when I left for work it started to work when driving out of my driveway, but quickly started to jump and then fell to 0 and never moved again... My odometer stopped working also.
What could my problem be...cluster, cable (cable need to be lubricated)?
Any help would greatly be appreciated..
Thanks
nevlis
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then
to
Sounds like a bad connection to the VSS (vehicle speed sensor), you don't have a cable, it's all electronic.
Doc
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Once I sent the message I realised the cable idea was stupid.
Where do I find the the VSS connection. Do you have or know where can I find the schematics...
Or could you give me a brief description on how to find it.
Thanks for the help. I would like to try the VSS connection before I have to bring my truck to the Chevy dealer
Silven
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If 2WD, the VSS will be mounted in the tailshaft portion of the AT case. If 4WD, it will be mounted near the output shaft of the transfer case. Usually has 3-4 wires leading to it. If you bought a $20 Chiltons or Haynes manual it would show you what it looks like and outline the testing procedures.
Doc
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Thanks,
It is a 4WD... I will check it out this weekend
nevlis
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